patient (adj.) Look up patient at Dictionary.com
mid-14c., "enduring without complaint," from Old French pacient and directly from Latin patientem "bearing, supporting, suffering, enduring, permitting" (see patience). Meaning "pertaining to a medical patient" is late 14c., from the noun. Related: Patiently.
patient (n.) Look up patient at Dictionary.com
"suffering or sick person under medical treatment," late 14c., from Old French pacient (n.), from the adjective, from Latin patientem (see patience).