PWS

*gibb- - pit, well (Kogan 2015: 117)

Hebrew
gēb - pit, ditch (HALOT 170)
Syriac
gubbā - ditch, trench, small pit (LSyr. 100, SL 210)
Arabic
ǯubb- - well, pit (Lane 371)
Geez
gəbb- - pit, ditch, hole, cavern (CDG 176)