Comments: Cf. also Akhv. reχe (Tseg., Tlan. reχer) 'bundle, pack', Kar. riher id. The listed forms reflect the PA verb *=iχ- (sometimes with Ablaut: *=aχ- (~ =oχ-)) and the PA derivate *r-iχi-r 'load'. On Av. hir 'sack, load' see under *χ_[ä]lʔV.
The Andian languages also reflect a root *=uχ- 'to take away, carry away' (And., Cham., Tind. =uχ-), reflecting another old Ablaut grade of the same verbal stem.