Proto-MSA

*nḥr - X. to complain (Kogan 2015:565)

The origin of Proto-MSA *nḥr (causative-reflexive stem) ‘to complain’ is unknown. Leslau compares Arb. nḥr (VI) ‘to face, to front each other,’ which can also mean ‘to be mutually niggardly, tenacious, avaricious’ (Lane 2774). (Kogan 2015:565)

Mehri
šənḥáwr - to complain (ML 292)
Jibbali
šənḥér - to complain (JL 186)
Soqotri
šénḥer - X. to complain (LS 265, CSOL I 623, CSOL II 550)