a-
not, without (ex. asymmetrical)
ab-
from, away from (ex. abduction)
ad-
toward, increase (ex. advance)
ambi-
both (ex. ambidextrous)
an-
not, without (ex. analgesic)
ante-
before, in front of (anterior)
anti-
against (ex. antibody)
arthr/o-
joint, limb (ex. arthritis)
auto-
self (ex. autoimmune)
bi-
two (ex. bisexual)
brady-
slow (ex. bradycardia)
circum-
around (ex. circumference)
contra-
against (ex. contradiction)
di-
two (ex. dissect)
dia-
across (ex. diaphragm)
dextro-
right side (ex. dextrous)
diplo-
double (ex. diploid)
dys-
abnormal, dysfunction (ex. dystrophy)
dors-
back (ex. dorsal)
ec-
out of (ex. ecbolic)
endo-
within, inside (ex. endocrine)
epi-
upon, above, outer (ex. epidermis)
ex-
out (ex. exit)
exo-
out (ex. exocytosis)
hemi-
half (ex. hemisphere)
heter/o-
different (ex. heterosexual)
homo
same (ex. homosexual or gay ;))
hydro-
water (ex. hydrophobic)
hyper-
more, above (ex. hyperactive)
hypo-
below, less (ex. hypothermia)
im-
no, not (ex. immobile)
in-
not (ex. incorrect)
infra-
under, beneath (ex. infrastructure)
inter-
among, between (ex. interaction, intervertebral)
intra-
within, inside (ex. intramural)
latero-
side (laterocolisis)
leuk-
white (ex. leukocyte or white blood cell)
macro-
large (ex. macrophage)
mal-
bad (ex. malnourished)
medi-
middle (ex. medium)
meso-
middle (ex. mesothelium)
micro-
small (ex. microfiber)
mid-
middle (ex. midline)
mono-
one (ex. monogamy)
pan-
all (ex. pansexual)
peri-
around (ex. pericardium)
poly-
many (ex. polyamorous)
post-
after (ex. post-traumatic)
poster-
after, behind (ex. posterior)
pre-
before (ex. premonition)
pro-
before (ex. probiotic)
pseudo-
fake, false (ex. pseudonym)
re-
back (ex. relapse)
retro-
after, behind (retroversion)
sinsitro-
left (ex. sinistrocardia)
sub-
below, under (ex. sub-level)
super-
above (ex. superior)
supra-
above (ex. supraorbital)
syn-
together (ex. sync)
tachy-
rapid, fast (ex. tachycardia)
trans-
through, across (ex. transverse)