Ugaritic

šry - to release (DUL 846)

Hapax legomenon in KTU 1.4 v 9 (šr-h l ˀarṣ brḳm ‘To release his lightning to the earth’), subject to alternative interpretations (notably, a Š-stem form from the widely attested PS root *wry/w ‘to throw, shoot,’ DRS 622).

PS
*šry/šrw - ? (Kogan 2015:397)