Where does “costuma” come from?
costuma (Romanian) comes from French costumer, from French costume, from Italian costume, 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.
Ancestry of “costuma”, step by step