Where does “consuetude” come from?
consuetude (English) comes from Middle English consuetude, from Middle French consuetude, from Old French consuetude, from Latin cōnsuētūdō, from Latin cōnsuēscō, from Latin suēscō, from Proto-Indo-European swe-dʰh₁-sk-, from Proto-Indo-European dʰeh₁- — to do, put, place.
consuetude (English): Custom, familiarity
Ancestry of “consuetude”, step by step