Proto-MSA

*nag(V)r- - sand hill (Kogan 2015:564)

The origin of Proto-MSA *nag(V)r- ‘sand hilľ is uncertain. Leslau compares the Soqotri term with PS *nḳr ‘to drill, to make a hole,’ but this meaning is scarcely compatible with that of the remaining MSA parallels (apart from the phonological irregularity).1467 Shall one rather compare Hbr. ngr ‘to be poured, to vanish; to flow, to pour, to run’ (BDB 620)1468? (Kogan 2015:564)

Mehri
nōgər - cliff of sand and stone; a sand or dust hill that cannot be rebuilt after collapsing (ML 287)
Jibbali
núgur - cliff of sand and stone; a sand or dust hill that cannot be rebuilt after collapsing (JL 184)