Where does “amurtrast” come from?

amurtrast (Swedish) comes from Swedish trast, from Old Norse þrǫstr, from Proto-Germanic þrastuz, from Proto-Indo-European trósdos.

amurtrast (Swedish): pale thrush

Definitions

Step	Language	Word	Meaning
1	Swedish	trast	a thrush
2	Old Norse	þrǫstr	thrush
3	Proto-Germanic	þrastuz	thrush
4	Proto-Indo-European	trósdos	—

amurtrast — Etymology, Origin & Word History | Etymology Explorer