PWS

*ḳsm - to practice divination (Kogan 2015: 119)

Hebrew
ḳsm - to seek divination, to predict (HALOT 1115)
Syriac
ḳṣm - to foretell, practice divination (LSyr. 687, SL 1397)
with secondary emphatization
Arabic
qsm - X. to seek to know what was allotted to him by means of divinatory arrows (Lane 2988)
Minaean
mḳs₃m - décision oraculaire (oracular decision) (LM 73)
Geez
ˀastaḳsama - to practice divination (CDG 446)