PS

*bwṯ - to be ashamed (EDA B N6)

Akkadian
bâšu - to come to shame (CAD B 5, AHw. 112)
Ugaritic
bṯ - be ashamed (DUL 249)
Ugaritic
bṯt - shame; shamelessness (DUL 250)
Hebrew
bwš - be ashamed (HALOT 116)
Hebrew
būšā - shame (HALOT 117)
Hebrew
bōšät - shame (HALOT 117)
Jewish Palestinian Aramaic
bht - be ashamed (DJPA 86)
Jewish Babylonian Aramaic
bht - be ashamed (DJBA 189)
Syriac
bhet - puduit eum (LSyr. 61)
Mandaic
bht - be ashamed (MD 54)
Arabic
buhtān- - calumny, slander, false accusation (Lane 264)

A borrowing from Aramaic (Jeffery 1938, 84)