The origin of Proto-MSA *ˀar(V)m ‘road’ is uncertain. The comparisons with Arb.
ˀiram ‘a sign of mark set up to show the way; stones set up as a sign to mark or show the way in the desert’ are not implausible. Of considerable interest is Akk.
arammu ‘wharf, embankment (of a canal); ramp, causeway’. (Kogan 2015:544)