| A | B |
| Para | beyond, Paraplegia/paralyzed beyond the waist |
| Patho | disease, pathogen/causing disease |
| Peri | around, pericardium/sac around the heart |
| poly | much, polydypsia/thirsty all of the time |
| Post | after, postmortem/after death |
| Pre | before, premature/before maturity |
| Pseudo | false, pseudotumor, false tumor |
| re | back again. recurrent/coming back again |
| retro | behind, retronasal/behind the nose |
| semi | half, semilunar.halfmoon |
| sub | under, subdural/under the dura |
| supra | over, above, supraclavical/above the clavical |
| syn | joined, synapse/cells joined together |
| tachy | fast, tachycardia/fast heart beat |
| trans | across, transdermal/across the skin |