PCS

*maḫar- - tomorrow (Kogan 2015: 194)

Probably to be directly identified with Akk. maḫru ‘past, bygone time; before, in the presence, in front of’. The alternative derivation from *ˀḫr (Brokelmann 1908:78, 241) is hardly acceptable (Kogan 2015: 194)

PS
*mḫr - to face (Kogan 2015: 194)

Hebrew
māḥār - next day, tomorrow (HALOT 572)
Syriac
mḥār - tomorrow (LSyr. 381, SL 742)
Sabaic
mḫr - tomorrow (SD 84)