Romanian word comunism comes from French -isme (-ism.)

Detailed word origin of comunism

Dictionary entry	Language	Definition
-isme	French (fra)	-ism.
commun	French (fra)	Common (of low class). Common (popular). Common (widespread). Communal.
communisme	French (fra)	(commonly) The Marxist ideology communism. (literally) Any collectivism.
comunism	Romanian (ron)	Communism.

Words with the same origin as comunism