Ultimate word success - Peterson's 2009
Day 5 Branch Out with Word Roots
Part II Find Out That New Words Equal the Sum of Their Parts
There are no shortcuts in test preparation…or are there? You will have to memorize lists of words; after all, some test-worthy words can only be learned through memorization. But you can also acquire heaps of test-worthy words by mastering only a handful of roots. This is a great shortcut: it’s fun, it’s easy, and, best of all, it works!
A root is a stem or base form for many words. It has been estimated that 90 percent of all English words can be traced back to classical Greek and Latin roots.
How Roots Work
1. Prefixes and Suffixes Are Added to Roots to Create Many Words.
For example, the root vor means “to eat.” If you are a voracious (voh-ray-shus) eater, you eat a lot of food. In the following examples, the root “vor(e)” is combined with prefixes and suffixes to describe types of eaters in the plant and animal kingdoms.
Cover the last column and see how many of these words you can figure out by just knowing the meaning of the root “vor.”
Word |
Prefix |
Meaning |
Root |
Meaning |
Word Definition |
carnivore |
carni- |
meat |
vor |
eat |
meat eater |
insectivore |
insect- |
bug |
vor |
eat |
bug eater |
herbivore |
herb- |
plants |
vor |
eat |
plant eater |
granivore |
gran- |
grain |
vor |
eat |
grain eater |
frugivore |
frug- |
fruit |
vor |
eat |
fruit eater |
graminivore |
gram- |
grass |
vor |
eat |
grass eater |
nectarivore |
nectar- |
juice |
vor |
eat |
nectar (juice) eater |
omnivore |
omni- |
everything |
vor |
eat |
eats everything |
Knowing how the words were created can help you figure out many words you encounter on standardized tests. In addition, you can use these decoding skills to figure out the meaning of all the new words that are created every day. (You’ll learn more about suffixes in Day 6.)
Here’s the basic drill:
Adding a prefix to a root |
Adding a suffix to a root |
de + hydrate = dehydrate |
zoo + ology = zoology |
hydro + power = hydropower |
bronch + itis = bronchitis |
The following chart shows additional examples of how words are put together. Knowing this process can help you take them apart to define them. Remember, words are like people: it’s easy to figure them out… once you know their parts.
Prefix |
+ |
Root |
+ |
Suffix |
= |
New Word |
Meaning |
re- |
+ |
fer |
+ |
-al |
= |
referral |
connection |
de- |
+ |
ter |
+ |
-ent |
= |
deterrent |
impediment |
re- |
+ |
pul |
+ |
-sion |
= |
repulsion |
send back |
dis- |
+ |
pel |
+ |
-ed |
= |
dispelled |
dissipated |
re- |
+ |
tract |
+ |
-able |
= |
retractable |
draw back |
im- |
+ |
peril |
+ |
-ed |
= |
imperiled |
put in danger |
dis- |
+ |
credit |
+ |
-ed |
= |
discredited |
compromise |
ab- |
+ |
duct |
+ |
-ed |
= |
abducted |
kidnapped |
Whenever you come upon an unfamiliar word, first check to see if it has a recognizable root. Even if you can’t define a word exactly, recognizing the root will give you a general idea of the word’s meaning. For example, if you read the word geocentric, knowing the root geo would help you figure out that geocentric has to do with the center (“centric”) of the Earth or Earth as the center.
2. A Word Can Contain More Than One Root.
For example, the word matrilineal contains the roots matri (mother) and lineal (line). Putting it together, you can deduce that matrilineal means “determining ancestry through the female line.”
3. Some Roots Are Words Themselves.
For example, the root term also means “name or length of time.” In a similar way, the root vent also means “an opening that allows air to enter.” Even though these roots are words, they can still function as roots, as the following chart shows:
Root |
Meaning |
Suffix |
New Word |
Meaning |
term |
name |
-ology |
terminology |
wording |
term |
name |
-agant |
termagant |
shrewish woman |
term |
end limit |
-inal |
terminal |
end of a series |
term |
end limit |
-less |
termless |
not limited |
4. Some Roots Must Be Combined with Other Word Elements to Form Words.
Take a look at the examples on the following chart:
Root |
Meaning |
Suffix |
New Word |
Meaning |
Pronunciation |
aud |
heard |
-ible |
audible |
able to be heard |
aw-dih-bul |
capit |
head |
-al |
capital |
most important |
cap-ih-tul |
carn |
flesh |
-al |
carnal |
of the flesh |
car-nal |
5. When It Comes to Building Words from Roots, Placement Matters.
Some roots can also function as prefixes, depending on their placement in a word. For example, graphy means “writing.”
used as a root |
calligraphy |
used as a prefix |
graphology |
Time for Fun: Word-Find Puzzle
Time for a break. There are fifteen words hidden in this word-find puzzle. (See the word list below.) Every word begins with “a.” To complete the puzzle, locate and circle all the words. The words may be written forward, backward, or upside down. The answers appear on here. Good luck!
a |
a |
a |
a |
s |
s |
i |
d |
u |
o |
u |
s |
y |
a |
q |
a |
b |
h |
o |
r |
k |
k |
q |
q |
a |
a |
r |
m |
a |
b |
r |
o |
g |
a |
t |
e |
z |
q |
s |
p |
o |
p |
b |
w |
d |
n |
o |
c |
s |
b |
a |
v |
y |
o |
t |
h |
l |
x |
a |
d |
m |
o |
n |
i |
s |
h |
l |
s |
a |
i |
u |
a |
a |
a |
a |
a |
a |
a |
a |
a |
u |
t |
a |
b |
t |
n |
e |
l |
a |
v |
i |
b |
m |
a |
m |
l |
l |
i |
i |
z |
e |
t |
o |
d |
i |
t |
n |
a |
m |
e |
u |
o |
o |
z |
a |
n |
t |
i |
p |
a |
t |
h |
y |
e |
b |
u |
n |
v |
a |
p |
p |
e |
a |
s |
e |
z |
z |
x |
m |
s |
a |
g |
g |
r |
a |
n |
d |
i |
z |
e |
x |
x |
a |
s |
h |
e |
y |
a |
n |
t |
i |
t |
h |
e |
s |
i |
s |
x |
Word List:
1. abhor: to turn away from; loathe
2. ablution: washing away; cleansing
3. abrogate: to repeal; do away with
4. abscond: to steal away and hide
5. admonish: to strongly urge or caution
6. aggrandize: to make more powerful, important, or wealthier
7. ambivalent: having conflicting emotions
8. amphibious: capable of living both on land and in water
9. antidote: a remedy against a poison
10. antipathy: a strong feeling of dislike; hostility; aversion
11. antithesis: a contrast of ideas
12. apostle: a person sent away to deliver a message
13. appease: to pacify; bring toward peace
14. assiduous: diligent; industrious
15. asylum: a place of security or retreat
Learn Test-worthy Words with Greek Roots
Many of the words we use every day come from Greek roots. This is especially true of the language of scientific words, because much of the language of science was created primarily from Greek roots. Scientific words often appear on standardized tests.
Greek Roots for Measurement
You’ll notice that some of the roots have more than one spelling. For example, macro and mega both mean “large.” Read the following chart several times, and you’ll soon get accustomed to the slight variations in spelling.
Root |
Meaning |
Example |
Definition |
acr |
topmost |
acrophobia (ak-roh-foh-bee-uh) |
fear of high places |
arch/prot |
first |
archbishop |
highest bishop |
prototype |
first of its kind |
||
chron |
time |
chronicle (krah-nih-kul) |
historical record |
ger/paleo |
old |
geriatric (jer-ee-at-trik) |
relating to old age |
paleogeology (pay-lee-oh-jee-ol-oh-jee) |
the science of Earth’s history |
||
horo |
hour |
horoscope (hor-oh-scope) |
signs of the zodiac |
macro/mega |
large |
macroscopic |
seen with the naked eye |
megalith |
huge stone |
||
meter |
measure |
altimeter (al-tih-mee-ter or al-tih-meh-ter) |
device to measure altitude |
micro |
small |
microbe (my-krob) |
tiny organism |
morph |
form |
metamorphosis (meh-tah-mor-foh-sis) |
change of form |
neo |
new |
neophyte (nee-oh-fyt) |
beginner |
pan |
all |
panacea (pan-eh-see-uh) |
a cure-all |
ped |
foot |
pedometer (peh-dahm-eh-ter) |
device for measuring steps |
poly |
many |
polyglot (pah-lee-glot) |
speaking several languages |
tele |
far off |
telescope |
device for seeing distant objects |
Words with the Hydro/Hydra Root
Many useful words are formed from the hydro/hydra root. The following chart shows some of the most important ones that often appear on standardized tests:
Word |
Definition |
Pronunciation |
hydrostat |
electrical device for detecting water |
hi-droh-stat |
dehydrate |
dry out |
dee-hi-drate |
hydrophobia |
fear of water |
hi-droh-foh-bee-uh |
hydroplane |
boat that travels on water |
hi-droh-playn |
hydroponics |
growing plants in water |
hi-droh-pon-iks |
hydropower |
power generated from water |
hi-droh-pow-ur |
hydrate |
combine with water |
hi-drate |
hydrangea |
flower (that needs much water) |
hi-drayn-jah |
hydrotherapy |
water therapy |
hi-droh-ther-uh-pee |
hydrosphere |
water on Earth |
hi-droh-sfeer |
Words About the Natural World
While we’re on the topic of water, below are some Greek roots and words formed from them that concern the natural world. You’ll find these words quite test-worthy.
Root |
Meaning |
Example |
Definition |
anthrop |
human |
anthropology (an-throh-pol-oh-jee) |
study of humankind |
bio |
life |
biology |
the study of life |
dem |
people |
democracy |
rule by the people |
gen |
race |
genetics (jen-eh-tiks) |
study of heredity |
eugenics (yoo-jen-iks) |
improving offspring |
||
helio |
sun |
heliotrope (hee-lee-uh-trop) |
sunflower |
ichthy |
fish |
ichthyology (ik-thee-ol-oh-jee) |
study of fish |
ornith |
bird |
ornithology (or-neh-thol-oh-jee) |
study of birds |
ped |
foot |
pedometer (peh-dah-meh-ter) |
instrument that measures footsteps |
phyt |
plant |
phytology (fy-tuhl-oh-jee) |
study of plants |
polit |
citizen |
cosmopolitan |
citizen of the world |
pyr |
fire |
pyrogenic (py-roh-jen-ik) |
producing heat |
soma |
body |
somatic (soh-mah-tik) |
physical |
thermo |
heat |
thermostat |
device for regulating heat |
zoo |
animal |
zoology |
study of animals |
Give It a Try: Word Scramble
Time for fun! First unscramble each of the seven test-worthy words so that it matches its definition. Then, use the words to fill the appropriate spaces on the corresponding line. When you have completed the entire puzzle, another test-worthy word will read vertically in the column with circles. The answers appear on here.
tryooppet |
first of its kind |
|
bldiuae |
able to be heard |
|
hpyteeon |
beginner |
|
iahobroacp |
fear of high places |
|
leronichc |
historical record |
|
scnieegu |
improving offspring |
|
ophbichars |
highest bishop |
Greek Roots for Beliefs and Ideas
The Greek roots form many test-worthy words that describe beliefs and ideas as well. How many of the following words do you know? Test yourself by covering the fourth column and trying to define each word.
Root |
Meaning |
Example |
Definition |
archy/cracy |
rule by |
monarchy (mon-ar-kee) |
rule by inherited leader |
biblio |
book |
bibliophile (bib-lee-oh-fy-uhl) |
book lover, book collector |
dox |
belief |
orthodox (or-thoh-dahx) |
conforming to approved beliefs |
gam |
marriage |
polygamy (poh-lih-guh-mee) |
multiple spouses |
graph |
writing |
graphology (graf-ahl-oh-jee) |
study of handwriting |
ideo |
idea |
ideology (eye-dee-ahl-oh-jee) |
body of knowledge |
logy |
study of |
anthropology (an-throh-pol-oh-jee) |
study of humanity |
nom |
rule |
autonomy (aw-ton-oh-mee) |
self-rule |
onym |
name |
pseudonym (soo-do-nim) |
pen name |
orama |
view |
panorama (pan-oh-ram-mah) |
complete view |
path |
feeling |
sympathy (sim-pah-thee) |
compassion |
psycho |
mind |
psychology (sy-kahl-oh-jee) |
study of the mind |
theo |
god |
theology (thee-ahl-oh-jee) |
study of god |
soph |
deceptive |
sophistry (sof-es-tree) |
tricky reasoning |
It’s Your Turn: Roots and Their Meanings
Assess what you’ve learned so far by completing the following chart. For each word, first write the root and its meaning. Then, use what you’ve learned about roots to define each word. Don’t hesitate to look back at what you just learned—or to use a dictionary. The answers appear on here.
Word |
Root |
Meaning |
Word Meaning |
1. pyrotechnics |
|||
2. thermometer |
|||
3. gene |
|||
4. android |
|||
5. zoological |
|||
6. thermodynamics |
|||
7. politician |
|||
8. pyrography |
|||
9. engender |
|||
10. heliocentric |
|||
11. polity |
|||
12. zoometry |
|||
13. gynarchy |
|||
14. ichthyoid |
|||
15. ornithopod |
Learn Test-worthy Words with Latin Roots
If you think we’ve borrowed a lot of roots from the Greeks, wait until you see what we’ve recycled from Latin! For example, the Latin root plac means “pleasure.” Words formed from this root include placid, complacent, implacable, complaisant, and placate.
The Latin root nomin/nomen (name) has given us a great many words, including these half-dozen:
Word |
Meaning |
Pronunciation |
ignominious |
disgracing one’s name |
ig-noh-min-ee-us |
misnomer |
wrong name |
mis-noh-mer |
nomenclature |
system of naming |
noh-men-clay-cher |
nominal |
so-called |
nah-muh-nil |
nominate |
name someone for an office |
nom-in-ayt |
nominee |
candidate |
nom-in-ee |
Latin Roots for Size and Amount
Below are fifteen Latin roots that describe size and amount. Study the roots, examples, and definitions. As you read, use some of the techniques you learned in Day 3 to help you learn and recall the words. For example, say the words aloud to help you remember them for standardized tests.
Root |
Meaning |
Example |
Definition |
alt |
high |
altitude |
height above surface |
ann |
year |
biennial (bi-en-ee-al) |
happening every two years |
brev |
short |
brevity |
being brief |
centr |
center |
centrist |
moderate viewpoint |
dors |
back |
dorsal |
back fin |
fin/term |
final |
finale (fi-nal-ee) terminal |
the last piece of music end |
magni |
large |
magniloquent (mag-nil-uh-kwent) |
pompous speaking style |
med |
middle |
median (mee-dee-an) |
in the middle |
multi |
many |
multifarious (mul-te-far-e-us) |
numerous and varied |
nihil |
nothing |
annihilate (ann-ni-ah-late) |
kill |
omni |
all |
omniscient (om-nish-ehnt) |
all-knowing |
pend |
weigh |
pendulous |
hanging |
sed/sess |
sit |
sedate (seh-date) |
quiet |
ten/tin |
hold |
tenet (tehn-ent) |
belief held as true |
vid, vis |
see |
visual (vih-shu-al) |
seen |
Seventh-Inning Stretch: Word-Definition Match
Match the word to its definition. You may wish to underline the Latin root in each word as you do so. Then, write your answers in the space provided. The answers appear on here.
1. abdication |
a. overpass |
|
2. diversification |
b. guess |
|
3. repulsion |
c. variety |
|
4. benediction |
d. decree; order |
|
5. edict |
e. renounce a throne |
|
6. misconduct |
f. assembly; caucus |
|
7. viaduct |
g. questionable |
|
8. Congress |
h. aversion |
|
9. conjecture |
i. wrongdoing |
|
10. objectionable |
j. blessing |
Latin Roots for “Kill or Cut”
The Latin root cide means “kill or cut.” As you read the following chart, cover the fifth column. See how many words you can decode using what you know about the root and its meaning.
Word |
Prefix |
Meaning |
Root |
Word Meaning |
insecticide |
insect- |
bug |
cide |
killing bugs |
genocide |
gen- |
people |
cide |
killing a race of people |
homicide |
homo- |
mankind |
cide |
a person killing a person |
matricide |
matr- |
mother |
cide |
killing one’s mother |
patricide |
patr- |
father |
cide |
killing one’s father |
fratricide |
frat- |
brother |
cide |
killing one’s brother |
sororicide |
soro- |
sister |
cide |
killing one’s sister |
suicide |
sui- |
self |
cide |
killing yourself |
infanticide |
infant- |
baby |
cide |
killing one’s baby |
ceticide |
cet- |
whales |
cide |
killing whales |
Time for Fun: Latin Roots—True or False
In the space provided, write T if the definition is true and F if it is false. Use what you learned about Latin roots to help you figure out what each test-worthy word means. The answers appear on here.
1. unification |
union |
|
2. degradation |
encouragement |
|
3. induce |
influence |
|
4. jettison |
bring on board |
|
5. addiction |
habit; fixation |
|
6. gentrification |
growing old |
|
7. scribe |
writer |
|
8. malediction |
good luck |
|
9. dejected |
depressed |
|
10. propellant |
meddler |
|
11. contradict |
dissent; deny |
|
12. gradient |
flat surface |
|
13. inscribe |
write on |
|
14. traduce |
praise |
|
15. abduct |
kidnap |
Give It a Try: Definitions
Define each word, using its root to help you. Write your definition on the line provided. The answers appear on here.
1. compendium |
|
2. biennial |
|
3. continence |
|
4. append |
|
5. omniscient |
|
6. supersede |
|
7. pendulous |
|
8. invidious |
|
9. secede |
|
10. omnivorous |
Answers and Explanations
Word-Find Puzzle (here)
Word Scramble (here)
prototype
audible
neophyte
acrophobia
chronicle
eugenics
archbishop
Reading down: panacea
Roots and Their Meanings (here)
Word |
Root |
Meaning |
Word Meaning |
1. pyrotechnics |
pyro |
fire |
fireworks |
2. thermometer |
thermo |
heat |
device for measuring heat |
3. gene |
gen |
race |
unit of heredity |
4. android |
andr |
man |
man-shaped robot |
5. zoological |
zoo |
animal |
about animals |
6. thermodynamics |
thermo |
heat |
using heat |
7. politician |
polit |
citizen |
officeholder |
8. pyrography |
pyro |
fire |
burning designs on wood, etc. |
9. engender |
gen |
race |
to produce |
10. heliocentric |
helio |
sun |
relating to the sun as center |
11. polity |
polit |
citizen |
form of government |
12. zoometry |
zoo |
animal |
measuring animals |
13. gynarchy |
gyn |
women |
government by women |
14. ichthyoid |
ichthy |
fish |
fish-like |
15. ornithopod |
ornith |
bird |
bird-like dinosaur |
Word-Definition Match (here)
1. e
2. c
3. h
4. j
5. d
6. i
7. a
8. f
9. b
10. g
Latin Roots—True or False (here)
1. T
2. F
3. T
4. F
5. T
6. F
7. T
8. F
9. T
10. F
11. T
12. F
13. T
14. F
15. T
Definitions (here)
1. digest; synopsis
2. happening every two years
3. self-control
4. add
5. perceiving all things
6. go beyond; replace
7. hanging
8. causing resentment
9. withdraw; resign
10. eating all kinds of foods