nominative (adj.)youdaoicibaDictYouDict[nominative 词源字典]
late 14c., "pertaining to the grammatical case dealing with the subject of a verb," from Old French nominatif, from Latin nominativus "pertaining to naming," from nominatus, past participle of nominare (see nominate). As a noun from 1620s.[nominative etymology, nominative origin, 英语词源]