Where does “incivil” come from?

incivil (English) comes from English civil, from Middle English cyvyl, from Old French civil, from Latin cīvīlis, from Latin -ilis, from Proto-Italic -elis, from Proto-Indo-European -elis, from Proto-Indo-European -lós — Forms agent nouns from verbal roots.

incivil (English): Displaying a lack of courtesy; rude, impolite;...