COMMON ROOT WORDS AND WORD ORIGINS

ROOTS
MEANING
WORD
alter
other
alternate, alter ego
ami, amic-
love
amiable, amicable
amphi
both ends or all sides
amphibian
ann, enni
year
anniversary, annual, biennial, perennial
anthrop
human, man
anthropology, anthropomorphic, misanthrope
aqua, aque
water
aquatic, aquarium, aqueduct
arch
chief, leader, ruler
archangel, monarch, archaic, archenemy
arthro
joint
arthritis
aud
sound
auditorium, audible, audiologist, audiotape
bell
war
belligerent, bellicose
biblio
book
bibliography, bibliophile
bio-
life
biography, autobiography, biology, antibiotic
brev
short
brief, abbreviate
cap
take, seize
capture, captivate, capacity
carn
meat
carnivorous, chili con carne
ced
yield, go
recede, secede, proceed, intercede, concession
chrom-
color
chromatic, monochrome, polychrome
chron-
time
chronicle, chronology, chronometer, synchronize
cogn
know
recognize, cognitive, incognito
cord/chord
cord
harpsichord
corp
body
corpus, corpse, corporal
crac, crat
rule, ruler
autocrat, democracy, bureaucrat, democracy
cred
believe
credible, credulous, credibility, credit, credo
cruc
cross
crucifix, crucial
crusta
shell
crustacean
crypt
hidden
cryptogram, cryptology, cryptic
culp
guilt
culpable, culprit
dei
god
deity, deify
demo-
people
demography, democracy, epidemic
dent
tooth
dentist, dentifrice, dentin
derm-
skin
dermatology, epidermis, hypodermic
dic
speak, say
dictate, predict, diction, indict
dox
belief, opinion
orthodoxy, paradox, heterodoxy
duc, duct
lead
induce, deduce, seduction, conduct, abduct
duo
two
duo
dynam-
power
dynamo, hydrodynamics
ego
self
egotist, egomania
equ
equal
equal, equity, equanimity, equate, equidistant
fac
make, do
manufacture, factory, benefactor
fil
threadlike
filament
frater
brother
fraternal, fraternize
gam-
marriage
monogamy, polygamy, bigamy
geo-
earth
geopolitical, geology, geography, geothermal
glyph
vertical groove
Hieroglyphics—Egyptian “sky writing”
grad, gress
step
gradual, progression, transgression
graph-
writing, printing
graphology, biography, telegraph, geography
gym
naked
gymnasium
gyn-
woman
gynecologist, androgynous
hemo, hema, hem
blood
hemophilia, hematology, hemoglobin
holo
whole, entire
holograph
hydro, hydr
water
dehydrate, hydraulics, hydroelectric, hydroplane
iso
equal, identical
isolate
ject
throw
inject, reject, subject, projection
jud
judge
judicial, judge, adjudicate
leg, lect
read, choose
legible, lectern, lecturer, election
liter
letter
literature, illiterate, literal
loc
place
local, location
log
word
monologue, epilogue
luc
light
lucid, elucidate
magn
large
magnify, magnate, magnificent
man
hand
manufacture, manual, manuscript
mar
sea
marine, mariner
mater
mother
maternal, maternity, matriarchy, matricide
mere
part, segment
mere
meta, met
behind, between
metacognition—behind the thinking
metri, meter-
measure
geometric, thermometer, odometer
min
small
minority, minuscule, minute
mit, miss
send
permit, submission, mission, emit,
mob, mot, mov
move
mobile, automobile, motion, promote, movie
mon
warn
premonition, admonition
mor, mort
death
mortal, mortician, immortality
morph
form, structure
metamorphosis, amorphous, morphology
mut
change
mutant, mutability, mutate
neuro
nerve
neurology, neurosis, neurobiology
nomen /nomin
name
nominal, nominate, nomenclature
nov
new
novel, renovate, innovation, novella
nym, onym
word, name
synonym, acronym, anonymous, pseudonym
odonto
tooth
orthodontist—one who straightens teeth
ortho-
straight, correct
orthodox, orthodontist, orthopedic
pac
peace
pacify, Pacific Ocean, pacifist
pater
father
paternal, paternity, patricide, patrilineal, patriotic
path
feeling, suffering
sympathy, apathy, empathy, telepathy, pathology
ped, pod
foot
pedal, pedometer, centipede, gastropod
pel, puls
push
pulsate, repulsive, impulse, compel, propel
pend
hang, weigh
pendulum, pendant, suspend, pending
phon-, phono-
sound, voice
telephone, euphony, cacophony, phonograph
plan
flat
planar, plantation, plane
pneum
lung
pneumatic
pod
feet
podiatrist
port
carry
portable, transport, portage, report,
pot
power
potent, omnipotent, potentate
psych-
soul, spirit, mind
psychology, psychic, psychobiography
pugna
fight
pugnacious, pugilist
quer, quis
ask
query, inquisition,
scent, scend
climb
ascend, ascent
schizo, schiz
division, split
schizophrenic
sci
know
scientific
sciss
cut
scissors
scrib, script
write
manuscript, scribe, proscribe, scripture
sec, sect
cut
dissect, section
sed, sess
sit
sedentary, session
sens, sent
feel, be aware
sensible, sentient
sequ, secu
follow
sequence, sequel, consecutive
serv
serve, protect
service
simil
same
similar, assimilate, simile, facsimile (fax)
siphon
tube
siphon
sol
sun
solar
son
sound
sonar, resonate, unison
soph
wisdom, knowledge
philosophy, sophisticated, sophomore (wise fool)
spec, spic
look, see
spectacles, spectator, inauspicious, prospect   
spir
coil
spiral
spir
breathe
inspire, respiration, conspire, perspiration
spond, spons
promise, answer for
respond, responsible
spont
by one's own force
spontaneous
stat
stay, position
station
tang, tact
touch
tactile, tangible
temp
time
temporary, temporize
ten, tent
hold
tentative, tenable, tenuous
terr
earth
subterranean, terrain, terrestrial, disinter
theo
god, deity
theology, polytheism, atheist, monotheism
therm-
heat
thermal, thermos, thermometer
trophy
nutrition, food
atrophy—without nutrition
uro
urine
urologist
vac
empty
vacation, vacuum, vacuous, vacant
ven, vent
come, go
intervene, convene, contravene
ver
truth
veracity, verify, verity
vert
turn
introvert, irreversible, vertigo
vit
life
vital, revitalize, vitamin
voc
call
revoke, invocation, vocal, evocative, convocation
zoo
animal
zoo, zoology, zoolatry
PREFIX
MEANING
EXAMPLES
a-, an-
not, without
amoral, anesthetic, apolitical, asocial
ab-
away from
abduction, abstain, abnormal
ad-
to, toward
adjoin, adjacent (lying near to)
ambi-
both
ambidextrous, ambivalent
ana-
up, back, again
analogy, anatomy, anagram
anti-
against
antipathy, antiwar, antisocial
apo-
from, away from
apology, apologize
auto-
self
autobiography, automobile, autocracy, automaton
bene-
good
benediction benevolent benefactor
cata-, cat-
down, against
catastrophe--a turning down
centro, centri-
around, center
concentric, centrifugal
circum-
around
circumlocution circumference, circumvent
com-
with, together
communal, community
con-
with, together
connect, confide conspire
contra-
against
contradict, contravene
de-
down, away
descend, deject (cast down)
dia-, di-
through, across
diameter, division
dis-
apart, not
disengage, discord, discomfort
dys-
ill, difficult, bad
dysfunctional, dysentery
e-
out of, from
elect (choose out of), eject (throw out)
ecto-
on the outside
ectoderm--outer skin
en-, em-
in
empathy--feeling in
endo-
within, inside
endoscope--instrument for observing inside
epi-
upon
epitaph epidermis, epicenter
eso-
inward, within
esoteric--more inward, esophagus
eu-
well, good
euthanasia--good death
ex-
out of, from
exhume, exhale, exodus
hetero-
other, different
heterosexual, heterodoxy, heterodox heterogeneous
homo-
same
homosexual, homogeneous, homogenized
hyper-
over
hypertension, hypersensitive, hyperactivity
hypo-
under
hypotension, hypodermic
il-
not
illegitimate, illicit, illegal, illegible
im-
not
imperfect, impolite, impossible
im-
into
imbibe (drink in, take in)
in-
not
indiscreet, invisible
in-
into
incorporate (take into the body)
inter-
between
intervene (come between), interstate
intra-
within
intrastate, intramural
ir-
not
irregular, irrational, irredeemable
macro-
large
macrocosm, macroeconomics
mal, male-
bad, evil
malediction malevolent, malnutrition
meta-
beyond
metaphysical
micro-
small
microscope, microcosm, microeconomics
mono-
one, single
monologue, monotheism, monarchy, monogamy
neo-
new, recent
neologism, neo-liberal, neonatology. neolithic
ob-
against
object, obstruct (build against)
palin-, pali-
back, again
palindrome
pan-
all, every
pantheism, Pan-Hellenic, panorama, pandemic
para-
false
paramilitary, paralegal, parachute
per-
through
percolate (flow through) perforate (punch through)
peri-
around
perimeter, periscope
phil-, philo-
like, lover of
philosophy, Francophile, bibliophile, philanthropy
poly-
many, several
polygon, polygamy, polytechnic, polytheism
post-
after
postgraduate, posthumous postpone
pre-
before
precede, predict (tell before)
pro-
for, forward
promote, project
pros-
toward, in front
prospect—view in front, something coming up
proto-
first
prototype, protoplasm, protobiology
pseudo
false
pseudonym, pseudoscience
re-
again, back
repeat, recede, regress (step back)
retro-
back
retrogression, retroactive
se-
away from
seduce (lead away), secede
sub-
under
submarine, subject, subhuman subterranean
sur-, super-
over, above
superhuman, superego, superintend, surpass
syn-, sym-, syl-, sys-
with, together
symphony, synonym, system, syllable
tele-
distant, far off
telephone, telepathy, television, telegram
trans-
across
transient, Transatlantic, transport (carry across)
SUFFIX
DEFINITION
EXAMPLE
-agog, -agogue
leader
demagogue, pedagogue
-cide
kill(ing)
patricide, infanticide, herbicide. suicide
-ectomy
cutting
appendectomy, splenectomy
-ia, -y
act, state
amnesia, mania, democracy, anarchy
-ic, -tic, -ical, -ac
having to do with
anthropomorphic, dramatic, biblical, cardiac
-ics
things having to do with
optics, physics
-isk, -iscus
small
asterisk--a little star
-ism
the belief in
pacifism, terrorism, socialism, communism
-ist
one who believes in
pacifist, terrorist, socialist, communist
-ite
one connected with
meteorite, polite, cosmopolite
-logy
study field of
biology, geology, etymology, cardiology
-oid
resembling, like-shaped
asteroid, spheroid
-or, -er
one who takes part in
doctor, actor, teacher, driver
-phobia
exaggerated fear
photophobia, claustrophobia, agoraphobia
-sis
act, state, condition of
analysis

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