←
Old English otor (cognate)
←
English otter (cognate)
←
Proto-Germanic *otra (mention)
←
Old High German ottar (cognate)
←
Ancient Greek ὕδρος (cognate)
←
Ancient Greek ὕδρα (mention)
←
Upper Sorbian wudra (cognate)
←
Proto-Balto-Slavic *udras (mention)
←
Proto-Balto-Slavic *ū́drā́ (mention)
←
Proto-Indo-European *wódr̥ (mention)
←
Proto-Indo-European *wédōr (mention)
←
Proto-Indo-European *udrós (cognate)
←
Lithuanian ū́dra (cognate)
←
Latvian ūdens (mention)
←
Latvian ūdris (mention)
←
Old Norse otr (cognate)
←
Old Prussian udro (cognate)
←
Romanian lutră (cognate)
←
Sanskrit उद्र (cognate)
←
Proto-Slavic *vydra (mention)
←
Swedish utter (cognate)
→
Lithuanian ūdra (cognate)
→
Latvian ūdens (mention)