prepense (adj.)youdaoicibaDictYouDict[prepense 词源字典]
"planned beforehand," c. 1700, short for prepensed (1520s), past participle adjective from obsolete prepense, originally purpense, from Old French pourpenser "to plan, meditate" (11c.), from pro- "before" (see pro-) + penser "to think" (see pensive).[prepense etymology, prepense origin, 英语词源]