Latin word comitia comes from Latin comes

Detailed word origin of comitia

Dictionary entry	Language	Definition
comes	Latin (lat)	(late classical, medieval) a count, an earl. A companion, comrade, partner. An attendant, a servant.
comitium	Latin (lat)	A place in the forum where comitia (election assemblies) were held.
comitia	Latin (lat)	A comitia; a Roman assembly for elections.