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