PWS

*gVbh(-at)- - forehead, front (SED I No. 68)

Related to *gabb(-at)- (with -h serving as a triconsonantizer?).

Arabic
ǯabah- - largeness, width, beauty of the forehead (BK 1 250, Lane 377)
Arabic
ǯabhat- - forehead (BK 1 250, Lane 377)
Tigre
gäbbah - broadfronted (WTS 582)
Tigre
gəbbəhit - forehead (WTS 582)
Mehri
gəbhēt - front (ML 113)
Jibbali
gəbhέt - brow (JL 69)
Harsusi
yábheh - brow (JH 38)
y- < *g- same form as in Arb. Omn.