nutria (n.)youdaoicibaDictYouDict[nutria 词源字典]
1836, from Spanish nutria "otter," also lutria, from Latin lutra (see otter).[nutria etymology, nutria origin, 英语词源]
otter (n.)youdaoicibaDictYouDict
Old English otr, otor "otter," from Proto-Germanic *otraz (cognates: Old Norse otr, Swedish utter, Danish odder, Dutch otter, Old High German ottar, German Otter), from PIE *udros, literally "water-creature" (cognates: Sanskrit udrah, Avestan udra "otter;" Greek hydra "water-serpent," enydris "otter;" Latin lutra, Old Church Slavonic vydra, Lithuanian udra, Old Irish odoirne "otter"), from root *wed- (1) "water" (see water (n.1)). Sea otter attested from 1660s, also known as sea-ape.