Etymograph
>
Indo-European
>
Old English
>
Dictionary
>
o
ter
otter
clear
Source:
Kroonen 2013
:562
Variation of:
otor
"otter"
originates from: PGmc
*utraz
"otter" (utraz
>
otraz
>
otra
>
otr) through pgmc-to-oe
(source:
Kroonen 2013
:562)