PWS

*ḳnˀ - to be jealous (Kogan 2015: 88)

Possible attestations of this root in Arabic are problematic. Many scholars accepted its connection with Arb. qnˀ ‘to be intensely red’, very tentatively mentioned in Brockelmann 1932:115, but this is semantically rather far-fetched. Perhaps more promising as a cognate would be Arb. qnˀ ‘to incite, to induce to kill someone’ = “to kill out of envy”?

Hebrew
ḳnˀ - to envy, be jealous (HALOT 1109)
Syriac
ḳenetā/ḳeneˀtā - zeal, desire (LSyr. 675, SL 1379)
Geez
ḳanˀa - be envious, be jealous, be eager (CDG 433)
Mehri
ḳáynəˀ - to be jealous (ML 232)
Jibbali
ḳéni - to be jealous (JL 147)
Soqotri
ḳáne or ḳéne - to be envious, to envy (LS 377; CSOL I 590; Naumkin et al. 2016a:51, 52; Naumkin–Kogan 2021 :528)