Where does “ubi” come from?

ubi (Classical Malay) comes from Proto-Malayic hubi, from Proto-Malayo-Chamic hubi, from Proto-Malayo-Sumbawan hubi, from Proto-Malayo-Polynesian qubi — The purple yam, Dioscorea alata.

Ancestry of “ubi”, step by step

StepLanguageWordMeaning
1Proto-Malayichubiyam
2Proto-Malayo-Chamichubi
3Proto-Malayo-Sumbawanhubi
4Proto-Malayo-PolynesianqubiThe purple yam, Dioscorea alata

Words derived from “ubi

Every word from Proto-Malayo-Polynesian qubiEvery word from Proto-Malayo-Sumbawan hubiEvery word from Proto-Malayo-Chamic hubi