Akkadian

âšu - to be nauseated (CAD A₂ 477)

Var. ḫâšu

PS
*ˁaw/yš-, *ˁašw/y- - kind of disease (fever, cold in the head; plague) (SED I No. 27)
The Akk. variant form with ḫ- may also suggest γ-. The ESA and Jib. forms, however, clearly point to ˁ-.