In the Roman Republic, the word comitia was used for the various popular assemblies (e.g. comitia centuriata). I can't find any clear indication online as to its etymological roots.
I was wondering whether it could be derived from the word comes, meaning companion or comrade. Its derivation could be analogous to that of militia from miles. Does this make sense linguistically? And is there some possible evidence out there that could be used for or against this theory?