Proto-MSA

*kV- - with (Kogan 2015:559)

The meaning “with” for the reflexes of PS *kV ‘like, as’ is not attested outside MSA. The original comparative meaning of *kV- left no trace in MSA. For the semantic shift from comparative to comitative cf. (with Bittner 1913a:8) Gez. məsla ‘with’ < məsl (*miṯl-) ‘likeness, similarity’ (CDG 365). (Kogan 2015:559)

Mehri
k-/kə- - with; at, in (of time) (ML 200)
Although similar to PS *kV in form, this word has a different meaning. It is difficult to say, whether it should be considered as development of the basic (comparative) meaning or one is supposed to deal with homonymy (Arakelova 2001: 17–18, 51).
Jibbali
k- - with (JL 124)
Although similar to PS *kV in form, this word has a different meaning. It is difficult to say, whether it should be considered as development of the basic (comparative) meaning or one is supposed to deal with homonymy (Arakelova 2001: 17–18, 51).