Used as a polite form of the 2 sg. personal pronoun. It is formed in the same way that the neutral 2 sg. pronouns axāx and axāš, with the reflex of the 2 pl. pronominal suffix *-kum > -xu attached to the base (Bulakh–Kogan 2013b:97).
Harari
-ayu - them (accusative pronominal suffix, 3 pl.)
(Bulakh–Kogan 2013b:102)
Based on the same element az- that is present in the 3 sg. pronouns. Extended through the element -ziy-, whose origin is unknown, and the nominal plural marker -ač (Bulakh–Kogan 2013b:100).