ḫalû - black mole (on the face and body); black spot (a disease of barley) (CAD Ḫ 53, AHw. 314)

Possibile shift of ḫ < *ḥ. Alternatively to be compared to Arb. ḫāl- ‘sign on the face, mole’ [BK 1 649] (cf. [Holma 1912 9]).