Roots, Prefixes & Suffixes

pachy- thick [prefix]
palat/o palate
palpit/o throb, flutter
pan- all [prefix]
pancreat/o pancreas
papill/o nipple, papilla
papul/o papule, pimple
para has given birth
para- beside, near [prefix]
-paresis weakness, slight paralysis [suffix]
patell/o patella (knee)
path/o disease
-pathy disease [suffix]
pector/o chest
ped(i/o) child, foot
pelv(i/o) pelvis
-penia deficiency [suffix]
-pepsia digestion [suffix]
pept/o digest
per- through [prefix]
peri- around [prefix]
perine/o perineum
peritone/o peritoneum
peta- quadrillion [prefix]
-pexy fixation (surgical) [suffix]
phac/o lens (eye)
phag/o eat, ingest
-phagia eating, ingestion [suffix]
phak/o lens (eye)
phalang/o finger or toe bone (phalanges)
phall/o penis
pharmac/o drug
pharyng/o pharynx, throat
phas/o speech
-phasia speech [suffix]
phen/o show
-pheresis removal [suffix]
-phil(ia) affinity for, attraction [suffix]
phleb/o vein
phob/o fear, aversion to
-phobia fear, aversion to [suffix]
phon/o sound, voice
-phoresis transmit, carry [suffix]
phos light
phot/o light
-phragm separation, wall [suffix]
phren/o diaphragm
-phylaxis protection, prevention [suffix]
physi/o function, natural
physic/o natural
-physis growth [suffix]
-phyte plant [suffix]
pico- one trillionth [prefix]
pil/o hair
pineal/o pineal gland
pituitar/o pituitary (gland)
-plakia plaque [suffix]
-plasia formation, growth [suffix]
-plasm formation, thing formed [suffix]
plasm/o plasma, formative
-plast formation, cell [suffix]
-plasty surgical repair [suffix]
-plegia paralysis [suffix]
pleur(a/o) pleura
-pnea breathing [suffix]
pneum(a/o) air, lung
pneumon/o lung, breath
pod/o foot
-poiesis formation [suffix]
poli/o gray (Gr. polios)
poly- many, much [prefix]
poly- many [prefix]
por- opening, passage through [prefix]
post- after; behind [prefix]
poster/o back, towards back
-praxia activity [suffix]
pre- before, in front of (time or place) [prefix]
presby- old age
primi- first [prefix]
pro- before, in front of (time or place) [prefix]
proct/o anus, rectum
prostat/o prostate (gland)
prot(o)- first [prefix]
proxim/o near, proximal to
prurit/o itching
pseudo- false [prefix]
psych/o mind
-ptosis prolapse, drooping [suffix]
-ptysis spitting [suffix]
pub/o pubis
pulm/o lung
pulmon/o lung
pupill/o pupil
purpur/o purple
py/o pus
pyel/o renal pelvis
pylor/o pylorus
pyr/o fever, heat

Return to: Medical Word Parts