French word connu comes from French connaître

Detailed word origin of connu

Dictionary entry	Language	Definition
connaître	French (fra)	(pronominal) to be knowledgeable (en about). (transitive) to know (of), to be familiar with (a person, place, fact, event). (transitive) to know, to experience (glory, hunger, problems etc.). (transitive, archaic) to know (sexually).
connu	French (fra)	A well-known person Famous. Known.

Words with the same origin as connu