a/an: without, absense of, no
acer/acid/acri: harsh, bitter, sour
act/ag: drive, do, lead, act, move
acu: sharp
ad: to, toward
ac/af/ag/al/an/ap/ar/as/af: before consonant
aev/ev: age, era
agog: leader
agri: field
ali: other
alim: support, nourish, cherish
alter: other
alt: high, deep
am: love, liking
amb/ambul: to go, to walk
ambi: around, on both sides
annu/anni/enni: yearly
ant/ante: before
ant/anti: against, opposite
anthrop: mankind, human being
antiqu: old, ancient
appell: name, to call upon
apt/ept: skill, ability
aqu/aqua: water
arch: first, chief, ruler, superior
arm/arma: weapons
art: art
astro/aster: star
aud/audi/aus: bold, daring, listen, hear
aug/aux: increase
auto: self
be: thoroughly, over
bel/bell: war
ben/bon: well, good, favorable
bi: two, twice, double
bio: life
brev: short
cap/capt/cept/cip: hold, seize, take
cap/capit: head
card/cord: heart
carn: flesh, body
cata: down, downward
ced/ceed/cess: yield, surrender, move, go
celer: swift
centr: center
cent: hundred
cert: certain
chron: time, a long time
cid/cis: cut, kill
circu/circum: around
cit/citat: to call, start
civ: citizen
clam/claim: call out, shout
clemen: mild, kind, merciful
claud/claus/clos/clud/clus: shut, close
cli/clin/cliv: learning, inclined, sloped
co/col/com/con/cor: together, with
cod: book
cogni/gno: learn, know
contra/contro: against, opposite
corp: body
cosm: universe
cracy/crat: government, rule, strength
crea: bring forth, create
cred: believe, trust
cre/cresc/cret/cru: rise, grow
crit: separate, judge
cour/cur: run, course
cur/cura: care
cyc/cyclo: circle, wheel, cycle
de: from, down, away, against, thoroughly intensive
dec/deca: ten
dei/div: god
demi: partly
dem: common people
derm: skin
di: double, two
dia: across, through, between
dic/dict: to say, speak, pronounce
dif/dis: apart, away, negative, not
don: to give
doc/doct: teach, prove
dog/dox: opinion, belief, praise
dom/domin: master, lord
dorm: sleep
drom/drome: run, step, arena
duc/duct: lead, pull
dupl: double, two
dur: hard, lasting
dyn/dynam: power, energy
dys: bad, impaired, abnormal
e/ex: apart, above, away, beyond, from, out intensive
ecto: outside, external
ego: I, self
endo: within, inside
epi: upon, near, over
equ: equal
erg: work
err: wonder, mistake
eth/ethos: character
eu: good, well
extr/extro: besides, beyond, outside of, more
fac/fic/fec: do, make
fall/fals: deceptive, false, erroneous
fed: league, pact
fer: hear, carry
fid: faith, trust
fin: end
flect/flex: bend
flu/fluct/flux: flow
fort: brave, strong, chance
frac/frag: break
frat: brother
func: perform, discharge
gam: marriage
gen: birth, class, descent, race, generation
geo: Earth
gloss/glot: language, tongue
grad/gress: step
graph/gram: write, draw, record
grat: pleasing
grav/griev: serious, heavy, harmful
greg: flock, herd
gyn: woman
helio: sun
hemo: blood
herb: vegetation
hetero: different, mixed, unlike
homo: same, alike
hom/homo: man, humanity
hydr/hydra/hydro: water
hypo: beneath, under, lower
ig/il/im/in/ir: not, without, causative prefix
in: in, on, upon, not, intensive prefix
inter: among, between, within, mutual
intra/intro: into, inward, within
ja/jact/ject: throw, fling
jur/jus/jud: swear, law, judge, just
let/leg/lig: read, choose
leg: law
lev: light
lex: word
liber: free
librar/libra: book
liter: letter
lo/log/loqu: word, speak, talk
lu/lum/lus: light
lud: play, game
macro: large, long
magn: great
mal: bad
man: hand
mand: order
mania: obsession
mar/mari: sea
mater/matri: mother
mega: great, large
meta: change
meter/metr: measure
micro: small
min: small
mis: hatred, bad, improper, wrong
miss/mit: move, send
mob/mot/mov: move
mono: one, single
mon/monit: warn
mori/mort: death
morph: form, shape
multi: many
mut: change
nas/nat: birth, be from, spring forth
nav: ship
nec/nic/noc/nox: kill, death, harm
necro: dead, corpse
nego: no
neo: new, recent
neuro: nerve
neut/neutr: not, either
noct/nox: night
nom/nomen/nym: name
non: not
nov: new
num: number
ob/oc/of/op: against
olig: few, little
omni: all, every
oper: work
opti/opto: eye, vision
ortho: straight, correct
os/oss/ost/osteo: bone
pal/paleo: ancient
pac: peace
pan: all, every
par: equal
para: beyond, related, alongside
pas/path: feeling, disease, suffering
pater/patr: father
ped: child
ped/pod: foot
pel/puls: drive, urge
per: through completely
peri: around, near
pet: seek, request, assail
phil: love, fondness, preference
phobos: fear
phon: sound, voice
phos/phot: light
phys/physio: nature
pict: paint
plac: please
poli: city, state, citizen
poly: many
pon/pos: put, place
popul: people
port: carry, gate
post: after, behind
pre: before, earlier
prehend/prehens: seize, grasp
prim: before, first
pro: in favor of
proto: first, earliest
pseudo: false
psych: mind
pub: public
punct: point, prick
put/putat: think, calculate
quer/ques/quir/quis: ask, seek
re: bacck again, repeat
rect: straight
rect/reg/regn: rule, govern
retro: backward
rid/ris: laugh
rog/rogat: ask
sacr/sanct: sacred, holy
sci: know
scope: examine, observe, watch
scrib/scrip: write
se: away, apart
sec/sect/segm: cut
secu/sequ: follow
semi: half, partly
sens/sent: feel, be aware
sol: sun
solv/solu: free, loosen, dissolve
somn: sleep
soph: wise, skillful, shrewd
spec/spect/spic: see, look at
spir: breath, energy, animation
stas/stat: stand, being in a place, position
strict/string: tight, drawn together
struct: build
sub/suc/suf/sug/sup/sus: below, less, under
super/sur: over, above
syl/sym/syn/sys: together, with
tact/tang: touch
tele: distance, far
tempor: time
ten/tain: hold
tend/tens/tent: stretch, strive
term: end, limit
terr: land, the Earth
terti: third
the/thei/theo: god
therap: to attend, treat
therm/thermo: warm, hot
tom/tome/tomy: cut, section
top/topo: place, region
tors/tort/torqu: twist, turn
tract: drag, pull
tran/trans: across, through
trem/tremu: tremble, shake
turb: spinning, confusion, disturbance
type: type
ultra: beyond, excessive, on the other side of
un: not, reverse, undo, remove, intensive prefix
uni: one
urb: city
us/ut: use, useful
vac/vaca/vacu: empty
veh/vect: carry
ven/vent: come
ver/verac/veri: true
verb: word
vers/vert: turn, change
via: way, road
vict/vinc/vanq: conquer
vid/vis: see, look
vir: man
vit: life
viv/viva: alive, lively, animated
voc/voke: call
vol/voli: wish, choice
volv/volu: roll, turn
vor/vora: devour, greedy
xen/xeno: stranger, foreigner
zo/zoo: animal
300 High Frequency Prefixes/Word Roots