deliberation (n.)youdaoicibaDictYouDict[deliberation 词源字典]
late 14c., Old French deliberation, from Latin deliberationem (nominative deliberatio), noun of action from past participle stem of deliberare "weigh, consider well," from de- "entirely" (see de-) + -liberare, altered (perhaps by influence of liberare "liberate") from librare "to balance, weigh," from libra "scale."[deliberation etymology, deliberation origin, 英语词源]