aero-:concerning the air of aircraft
plane—aeroplane
space—aerospace
anti-:against;opposite of
nuclear—antinuclear
matter—antimatter
war—antiwar
auto-:of or by oneself
biography—autobiography
criticism—autocriticism
be-:to treat as the stated thing
friend—befriend
little—belittle
bi-:two;twice;double
lingual—bilingual
cycle—bicycle
bio-:concerning living things
chemistry—biochemistry
sphere—biosphere
by-,bye-:less important
produce—by-produce
way—byway
centi-:hundredth part
grade—centigrade
meter—centimeter
co-:together,with
author—coauthor
exist—coexist
col-:(used before l ) together,with
location—collocation
com-:(used before b,m,p ) together,with
passion—compassion
con-:together,with
centric—concentric
federation—confederation
contra-:opposite
diction—contradiction
natural—contranatural
cor-:(used before r ) together,with
relate—correlate
respond—correspond
counter-:opposite
act—counteract
attack—counterattack
cross-:across;going between the stated things and joining them
country—crosscountry
breed—crossbreed
de-:showing an opposite;to remove;to reduce
code—decode
value—devalue
dis-:not;the opposite of
advantage—disadvantage
agree—disagree
honest—dishonest
em-:( used before b,m,p ) to cause to become
body—embody
power—empower
en-:to cause to become;to make
danger—endanger
large—enlarge
ex-:former ( and still living )
minister—ex-minister
wife—ex-wife
extra-:outside;beyond
curricular—extracurricular
ordinary—extraordinary
fore-:in advance,before;in or at the front
arm—forearm
warn—forewarn
il-:( used before l ) not
legal—illegal
literate—illiterate
im-:( used before b,m,p ) not
moral—immoral
possible—impossible
in-:not
direct—indirect
sensitive—insensitive
infra-:below in a range;beyond
red—infrared
structure——infrastructure
inter-:between;among
change——interchange
national——international
intra-:inside,within;into
city——intracity
department——intra-department
ir-:(used before r)not
regular——irregular
responsible——irresponsible
【1】 【2】