vociferous (adj.)youdaoicibaDictYouDict[vociferous 词源字典]
1610s, from Latin vociferari "to shout, yell, cry out," from vox (genitive vocis) "voice" (see voice (n.)) + stem of ferre "to carry" (see infer). Related: Vociferously; vociferousness.[vociferous etymology, vociferous origin, 英语词源]