Ugaritic

ṣmḫ - to sprout, grow, prosper, flourish (DUL 785)

The only attestation of the Ugaritic verb (KTU 7.63:9) is rather unreliable.

PNWS
*ṣmḫ - to sprout (Kogan 2015:238)
Cf. perhaps Arb. ˀimraˀat- ṣamiḫat- = γaḍḍat-