The origin of Proto-MSA *hVlVˁ- ‘shadow’ is uncertain. As there is no feasible parallel with *h-, one may be inclined to agree with the authors of DRS 418 who, following Leslau, surmise that the first consonant of the protoform is *š, comparing it to Arb.
silˁ- ‘a like, a fellow’. The etomology is contractied by the presence of h in Jibbali, but, as rightly acknowledged in DRS, the Jibbali lexeme seems to be specifically poetic and, therefore, probably Mehrizing (Kogan 2015:556)