Proto-Germanic *utraz

→ English otter (inherited)

→ Old English otor (inherited)

→ Danish odder (inherited)

→ German Otter (inherited)

→ Middle Dutch otter (inherited)

→ Middle English oter (inherited)

→ Faroese otur (derived)

→ Westrobothnian otter (inherited)

→ Ancient Greek ἔνυδρις (cognate)

→ Icelandic otur (derived)

→ Dutch otter (inherited)

→ Norwegian Nynorsk oter (inherited)

→ Old Norse otr (inherited)

→ Swedish utter (derived)