Syriac

ṣəbūtā - will, thing (DNWSI 956, HALOT 1962, DJPA 457, LSyr. 619)

In later dialects, this lexeme replaced Hbr. ḥēpäṣ (HALOT 339‒340).

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’).