commence (v.)youdaoicibaDictYouDict[commence 词源字典]
c. 1300, from Old French comencier "to begin, start" (10c., Modern French commencer), from Vulgar Latin *cominitiare, originally "to initiate as priest, consecrate," from Latin com- "together" (see com-) + initiare "to initiate," from initium (see initial (adj.)). Spelling with double -m- began in French and was established in English by 1500. Related: Commenced; commencing. [commence etymology, commence origin, 英语词源]