a- (an- before vowel or h)
not, without, lacking, deficient
anti- (ant- before vowel or h)
against, opposed to, preventing, relieving
di-
two, twice, double
dys-
difficult, painful, defective, abnormal
ec- (ex- before vowel)
out of, away from
ecto- (ect- before a vowel)
outside of
en- (em- before b, m, p)
in, into, within
endo-, ento- (end-, ent- before vowel)
within
epi- (ep- before vowel or h)
upon, over, above
exo-
outside, from the outside, toward the outside
hemi-
half, partial; (often) one side of the body
hyper-
over, above, excessive, beyond normal
hypo- (hyp- before vowel or h)
under, deficient, below normal
mono- (mon- before vowel or h)
one, single
peri-
around, surrounding
syn- (sym- before b, p, m)
together, with, joined
-a
state, condition (forms nouns)
-ac
pertaining to, located in (forms adjectives)
-ia/ -y
state, condition (forms nouns)
-iac
person afflicted with (forms nouns)
-iasis
disease, abnormal condition, abnormal presence of (forms nouns)
-ic
pertaining to, located in or indicate a drug or agent or person suffering from a certain disability or condition (can form adjectives or nouns)
-in, -ine
forms names of substances (forms nouns)
-ist
a person interested in (forms nouns)
-itic
pertaining to; pertaining to inflammation or indicate a drug or agent (forms adjectives and nouns)
-itis/ -itides
indicating an inflamed condition: inflammation (forms nouns)
-ium/ -eum
membrane, connective tissue (forms nouns)
-ma
abnormal or diseased condition (forms nouns)
-osis
abnormal or diseased condition (forms nouns)
-otic
pertaining to (forms adjectives)
-sia
state, condition (forms nouns)
-sis
state, condition (forms nouns)
-tic
pertaining to or indicating a drug or agent (forms adjectives and nouns)
acanth-
thorn, spine
alg-
pain
alges-
sensitivity to pain
all-
other, divergence, difference from
angi-
(blood) vessel, duct
arteri-
[air passage] artery
arthr-
joint
bi-
life
Brady-
slow
cardi-
heart
cephal-
head
crani-
skull
cyt-
[hollow container] cell
encephal-
brain
erythr-
red, red blood cell
lept-
thin, fine, slight
leuk-
white, white blood cell
lith-
stone, calculus
log-
word, study
malac-
soft
mes-
middle, secondary, partial, mesentery
-meter, metr-
measure, measuring device
nephr-
kidney
neur-
[tendon] nerve, nervous system
oste-
bone
prosop-
face
prot-
first, primitive, early
scler-
hard
sten-
narrow
stere-
solid, having three dimensions
tachy-
rapid
tox(i)-
poison
-logy
study, science, the study or science of
-logist
one who specializes in a certain study or science
-malacia
the softening (of tissues) of
-sclerosis
the hardening (of tissues) of
-stenosis
the narrowing (of a part of the body)
-toxic
poisonous (to an organ)
-toxin
a substance poisonous to (a part of the body)
amphi-, ampho-
on both sides, around, both
ana-
up, back, against
apo-
away from
cata- (cat- before vowel or h)
downward disordered
dia- (di- before a vowel)
through, across, apart
eso-
within, inner, inward
eu-
good, normal, healthy
heter-, hetero-
different, other, relationship to another
homo-, homeo-
same, likeness
meta- (met- before vowel or h)
change, transformation, after, behind
para- (par- before vowel)
alongside, around, abnormal, beyond
pro-
before
pros-, prosth-
in place of
-al
pertaining to, located in (forms adjectives)
-ase
forms names of enzymes (forms nouns)
-asia, -asis
state, condition (forms nouns)
-ema
state, condition (forms nouns)
-esis
state, condition, procedure (forms nouns)
-etic
pertaining to (forms adjectives)
-ics, -tics
indicating a particular science or study; science or study of (forms nouns)
-ism
state, condition, quality (forms nouns)
-ismus
state, condition, muscular spasm (forms nouns)
-oid, -ode, -id
indicating a particular shape, form, or resemblance; like, resembling (forms adjectives and nouns)
-oma
usually tumor, occasionally disease (forms nouns)
-ose
names of chemical substances or full of, resembling (forms nouns and adjectives)
-ous
pertaining to, characterized by, full of (forms adjectives)
-us
condition, person (forms nouns)
-ize
to make, become, cause to be, subject to, engage in (forms verbs)