Sino-Korean word from 水獺, from 水 'water' + 獺 'otter'

Ramač, Ju., editor, Руско-сербски словнїк, Novi Sad: Faculty of Philosophy, page 125 https://archive.org/details/rusyn-serbian-dictionary-2010/page/n125/mode/1up?view=theater

Abaev 4, 120, Matasović 2009, 395, De Vaan 2008, 355 Proto-Balto-Slavic: *ū́ˀdrāˀ: Old East Slavic выдра, Belarusian выдра, Ukrainian видра, Old Novgorodian воудра, Russian вудра́ (Pskov dialect), Bulgarian видра, Macedonian видра, Serbo-Croatian ви̏дра / vȉdra, Slovenian vīdra, Czech vydra, Polish wydra, Slovak vydra, Upper Sorbian wudra, Lower Sorbian wudra, Proto-Italic *utrā: Latin lutra (initial l- perhaps from lavō 'to wash', lupus 'wolf' (interpreting otters as "water wolves") or lūdō 'play' (referring to the playfulness of otters), Sicilian lutra, Emilian ludra, Friulian lodre, Lombard ludra, Piedmontese ludra, Romansch lutra, ludra, Venetian lodra, Old French lutre, leurre, French loutre, Romanian lutră, Corsican lontra, Italian lontra, Galician lontra, londra, Portuguese lontra, Sardinian lontra, Proto-Hellenic *údrā, Ancient Greek ὕδρα 'aquatic monster', from Proto-Indo-European *udréh₂, the feminine form of *udrós 'of water, aquatic', 'otter': Latvian ûdrs, Lithuanian ū́dras, Old Prussian udro, Old English otr, oter, ottor, otor, Scots otter, English otter, Saterland Frisian Otter, West Frisian otter, Low German Otter, Dutch otter, Old High German ottar, German Otter, Old Norse otr, Icelandic otur, Faroese otur, Norwegian oter, Swedish utter, Danish odder, Ancient Greek ὕδρος 'sea snake, water animal', Sanskrit udrá, Assamese ud, Bengali ud, Hindi ūd, Urdu ūd, Oriya udrô, Avestan udra, Digor урдӕ, Iron уырд