The origin of Proto-MSA *kaˁl-at- ‘(swollen) testicle’ is unknown. Comparable forms are well attested in the Arabic dialects of the area (GD 2577, Piamenta 431, Behnstedt 1076), but it is difficult to say whether they are due to MSA influence or vice versa. It is hard to avoid thinking of Arb. kaˁl- ‘dry dung which sticks to the testicles of a ram’ (WKAS K 235, LA 11 700) as somehow related to the MSA forms in spite of the fact that “dung” is the general meaning attributed to kaˁl- in the traditional lexicography. The insertion of -r- in Soqotri, in all probability secondary, remains to be explained. (Kogan 2015:559-560)