The Bibles tells us that with the move to monotheism the names of Avram and
Sarai were changed to Avraham and Sarah.
I wonder whether other than the biblical explanation and story, were the
heh-less names of Avram and Sarai typical in the region at large and has the
addition of hehs to names been a convention seen elsewhere or having a
significance other than that of the biblical context? Would it have a known
semantic evolution, characteristic or significance of no religious conotation
or explanation?