Prefixes & Suffixes

a-/an-

without/not

epi-

on/over

hyper-

excessive/over

hypo-

below normal/deficient

peri-

around

sub-

under/lower

-ac

Pertaining to/involving

-al

Of the kind, pertaining to

-algia

pain

-cyte

cell

-ectomy

removal/excision

-gram

image/record

-ia

condition

-ist

Relating to

-itis

inflammation

-logy

Study of

-oma

tumor/mass

-osis

Condition/action (often abnormal)

-pathy

Disease

-scope

Looking instrument

-scopy

Act of looking/visual examination

trans-

across/beyond

ab-

from, away

Anti-

against

Brady-

Slow

de-

away from, down

dys-

difficult, painful, bad

endo-

within, innermost

inter-

Between, amongst

intra-

within, inside

mega-

large, enlarged

tachy-

rapid, fast

tetra-

four

tri-

three

-constriction

Making narrower

-dilation

making wider

-ectasis

Expansion, dilation/stretching

-emia

blood

-graph

diagram/recording instrument

-graphy

process of recording

-lysis

destruction/dissolving

-legally

large, enlarged

-oxia

oxygen levels

-plastic

surgical correction, repair

-ptysis

spitting

-sclerosis

dryness, hardening

-stenosis

contracted, narrowing

-Tomy

incision

eu-

good

Poly-

Many

-ema

condition

-osmia

odor

-pnea

breathing

-sphyxia

pulse

-thorax

chest

-ase

enzyme

-centisis

surgical puncture

-emesis

vomiting

-lithasis

hardening

-otomy

cut in

-phagia

eating, ingestion

-rraghia

excessive flow

-rrhea

flow, discharge

-stomy

surgical opening

-poietin

to make

-ptosis

prolapse, drooping

-rraphy

suture

-spasm

contraction/spasm

-tresi

opening

-tripsy

crushing

-uria

urine condition

-arche

beginning

-cyesis

pregnancy

-gravida

pregnancy

-ium

condition, tissue, structure

-lapse

fall, slide

-parous

producing, giving birth

-Percy

Surgical fixation

-salpinx

Fallopian tube

-tocia

labor childbirth