Where does “trest” come from?

trest (Romansch) comes from Latin tristis, from Proto-Italic treistis, from Proto-Indo-European tréystis — stubborn; in a bad mood.

trest (Romansch): sad

Definitions

Step	Language	Word	Meaning
1	Latin	tristis	sad, unhappy, melancholy, morose; sorrowful,...
2	Proto-Italic	treistis	—
3	Proto-Indo-European	tréystis	stubborn; in a bad mood

trest — Etymology, Origin & Word History | Etymology Explorer