premeditation (n.)youdaoicibaDictYouDict[premeditation 词源字典]
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).[premeditation etymology, premeditation origin, 英语词源]