Proto-MSA

*ˁrr - to block, to withhold (Kogan 2015:550)

The origin is unknown.

Mehri
ˀāttər - to back off (ML 26)
Mehri
šārōr - to have the throat blocked or paralyzed after a snake bite (ML 26)
Jibbali
ˁerr - to dam, to staunch; to stop from going (JL 14)
Soqotri
ˁer - 1. to block; 2. to enclose, to shut in (LS 329; CSOL I 497; CSOL II 415)