maḫru - past, bygone time; before, in the presence, in front of (CAD M₁ 50, AHw. 585)

Since the pattern(s) C₁aC₂(a)C₃- are not synchronically productive in Akkadian, maḫru is unlikely to be derived from maḫāru ‘to face’ within the history of Akkadian. Rather, we are probably faced with an archaic, pre-Akkadian derived noun, also preserved in PCS with a shift of meaning (Kogan 2015: 194)