gav גַּב ‘back/rim/brow’ (Hebrew)

Etymology^?: from an unused root meaning to hollow or curve

gav n
1) convex surface, back
 1a) back (of man)
 1b) mound (for illicit worship)
 1c) boss (convex projection of shield)
 1d) bulwarks, breastworks (of arguments-fig.)
 1e) brow, eyebrow
 1f) rim (of wheel)