Hebrew

ṣəbī - ornament, splendor (HALOT 997)

Aramaic root; cf. NeoSyr. ṣbˀ 'to decorate' (with feathers, Maclean 262a); NeoArm. ṣyb (Bergsträsser Gloss. 83).

PS
*ṣbw - to wish, to desire (Kogan 2015:95)

It similarly mirrors the semantic evolution of the PWS root *ptw ‘to desire’ (> Arb. fataⁿ ‘youth’).