Akkadian

atwû - to discuss, to talk over (CAD A₂ 29, AHw. 89)

Goetze 1947: 244‒245, Kouwenberg 2008, Kogan 2015: 334
Cf. Ugaritic hwt

Areal reconstruction
*hwy - to speak (Kogan 2015:334)

Akk.-Ugr. *haw-at- ‘word; matter’ (Haldar 1964:275) is ultimately related to this root (see Kogan 2015:334)