forcible (adj.)youdaoicibaDictYouDict[forcible 词源字典]
early 15c., "powerful, violent; done by force," from Old French forcible "strong, powerful, mighty," from forcier "conquer by violence" (see force (v.)). From 1550s as "possessing force." Related: Forcibly. [forcible etymology, forcible origin, 英语词源]