obedient (adj.)youdaoicibaDictYouDict[obedient 词源字典]
c. 1200, from Old French obedient "obedient" (11c.), from Latin oboedientem (nominative oboediens), present participle of oboedire "to obey" (see obey). Related: Obediently.[obedient etymology, obedient origin, 英语词源]