PS

*kall-at- - daughter-in-law; bride (Kogan 2011: 236)

Akkadian
kallatu - daughter-in-law, wife of a son living in his father's household, bride, sister-in-law (CAD K 79, AHw. 426)

Cf. Kraus 1973:246–249.

Ebla
kál-la-tum - Sum. É.GI.A (VE 322; Krebernik 1983: 14)
Ugaritic
klt - daughter-in-law, bride (DUL 441)
Hebrew
kallā - ??? (HALOT 478)
Syriac
kaltā - daughter-in-law, bride (LSyr. 326)
Arabic
kannat- - daughter-in-law, sister-in-law (WKAS K 372)

phonological difference remains unexplained

Mehri
kəlōn - bride and groom (ML 209)
Jibbali
kólún - bride and groom (JL 130)
Soqotri
kelán - bride and groom (LS 219)