Where does “bast” come from?

bast (German) comes from Old High German bast, from Frankish bastijan — to sew, weave; to weave, plait, sew; to plait,...

Ancestry of “bast”, step by step

Step	Language	Word	Meaning
1	Old High German	bast	inner bark of trees
2	Frankish	bastijan	to sew, weave; to weave, plait, sew; to plait,...