Latin roots/prefixes ALL OF THEM

a, ab

away, from

ad

to

ante

before

bi

two

circum

around

con (col, com, cor)

together, with

contra

against

de

from, down

dis

apart, away

e, ex

out

in (il, im, ir)

not

inter

between

intra

within

ob

against

post

after

preter

beyond

pro

forward

retro

backward

se

apart

semi

half

sub

under

super

above

trans

across, through

ultra

beyond, exceedingly

vice

in place of

avert

turn away

abduct

lead from

admit

grant entrance to

anteroom

a room before another

bicycle

a vehicle with two wheels

circumnavigate

sail around

conspire

plot together or with

colloquy

a talking together; conference

compose

put together

correspond

agree with; communicate with by exchange of letters

contradict

speak against; deny

deduction

a conclusion drawn from reasoning

demote

move down in rank

disrupt

break apart

dismiss

send away

emit

send out; utter

expel

drive out

insignificant

not significant

immoral

not moral

irregular

not regular

illuminate

direct light on; light up

import

bring into one country from another

irrigate

pour water on

obloquy

talking against; censure

perennial

lasting through the years; enduring

pervert

thoroughly turn from the right way; corrupt

postwar

after the war

premonition

a warning before; forewarning, intuitive anticipation of a coming event

preterhuman

beyond what is human

secede

move apart; withdraw

semicircle

half of a circle

submerge

put under or plunge into water

supernatural

above what is natural; miraculous

transcontinental

extending across a continent

transmit

send through

ultraconservative

exceedingly conservative

vice-president

officer acting in place of the president

rupt

break, burst

abrupt

broken off, sudden

corrupt

changed from good to bad; vicious

erupt

burst or break out

incorruptible

inflexibly honest; incapable of being corrupted or bribed

interrupt

break into or between; hinder; stop

rupture

break; breaking, hostility

fratricide

act of killing one's brother

genocide

Deliberate extermination of a racial or cultural group

germicide

substance that kills germs

herbicide

substance that kills plants

homicide

the killing of one person by another

infanticide

act of killing an infant

insecticide

substance that kills insects

matricide

act of killing one's mother

patricide

act of killing one's father

pesticide

substance that kills rats, insects, bacteria, etc.

regicide

act of killing a king

sororicide

act of killing one's sister

tyrannicide

act of killing (or killer of) a tyrant

string (strict)

bind, draw tight

astringent

drawing (the tissues) tightly together; stern; austere

astringent (n)

substance that shrinks tissues and checks flow of blood by drawing together blood vessels

boa constrictor

snake that "constricts" or crushes its prey in its coils

constrict

draw together; bind

restrict

keep within limits; confine

stricture

adverse criticism; censure

stringent

strict; rigid; severe

unrestricted

not confined within bounds; free; open to all

vor

eat greedily

carnivore

a flesh-eating animal

carnivorous

flesh-eating

herbivorous

dependent on plants as food

insectivorous

dependent on insects as food

omnivore

person or animal that eats everything (both flesh and plants)

omnivorous

eating everything, both plant and animal substances; avidly taking in everything

voracious

greedy in eating; insatiable, as a voracious appetite

viv

live, alive