premedical (adj.)youdaoicibaDictYouDict[premedical 词源字典]
also pre-medical, 1881, in reference to study for medical training, from pre- + medical.[premedical etymology, premedical origin, 英语词源]
premeditate (v.)youdaoicibaDictYouDict
1540s, from pre- + meditate, or a back formation from premeditation, or else from Latin praemeditatus, past participle of praemeditari "to think over." Related: Premeditated; premeditating.
premeditation (n.)youdaoicibaDictYouDict
early 15c., from Old French premeditacion and directly from Latin praemeditationem (nominative praemeditatio) "consideration beforehand," noun of action from past participle stem of praemeditari "to consider beforehand," from prae- "before" (see pre-) + meditari "to consider" (see meditation).
unpremeditated (adj.)youdaoicibaDictYouDict
1590s, from un- (1) "not" + past participle of premeditate (v.).