PS

*ḥamāt- - mother-in-law (Kogan 2011: 236; Kogan 2014: 101)

Akkadian
emētu - mother-in-law (CAD E 154, AHw. 214)
Hebrew
ḥāmōt - mother-in-law (HALOT 327)

Hbr. ḥām and ḥāmōt are restricted to the parents of the husband

Syriac
ḥmātā - mother-in-law (Kogan 2011: 236; Kogan 2014: 101)
Arabic
ḥamāt- - mother-in-law (Lane 650, LLA 77)

Ar. ḥam-, ḥamāt- tend to be restricted to the parents of the husband

Geez
ḥamot - mother-in-law (Kogan 2011: 236; Kogan 2014: 101)
Mehri
ḥəmáyt - mother-in-law (ML 180)
Soqotri
ḥámit - mother-in-law (LS 178–179, CSOL I 559)