Where does “þiustrī” come from?
þiustrī (Proto-West Germanic) comes from Proto-West Germanic þimstr, from Proto-Germanic þimstraz, from Proto-Indo-European témH-s-ro-s, from Proto-Indo-European temH- — dark.
þiustrī (Proto-West Germanic): dark, gloomy
Ancestry of “þiustrī”, step by step
Words derived from “þiustrī”