PCS

*maγār-at-/*maγarr-at- - cave (Kogan 2015: 193)

probably related to the verbal root *γwr ‘to sink down, to be depressed’, v. Kopf 1976:160 and Takács 2008:681

Hebrew
məˁārā - cave (HALOT 615)
Syriac
mˁartā - cave (LSyr. 545, SL 805)
Arabic
maγārat- - cave (Lane 2307)