baş

fine, good, well

From Avestan vohū "good", vahištæm/vahišta "best"
(In Kurdish, "v" turns into "b" as in Vahman/Vohuman vs Bahman)

Indo European wesu- “good”,
Luwian wašu-, wašui- “good”,

Possibly related to PIE *bhad- "good",
Proto-Germanic root *bat-,
Old English bōt.