Where does “kastans” come from?
kastans (Tok Pisin) comes from English customs, from English custom, from Middle English custume, from Anglo-Norman custume, from Latin cōnsuētūdō, from Latin cōnsuēscō, from Latin suēscō, from Proto-Indo-European swe-dʰh₁-sk- — to do, put, place.
kastans (Tok Pisin): customs
Ancestry of “kastans”, step by step