Where does “magdugi” come from?

magdugi (Bikol Central) comes from Bikol Central dugi, from Proto-Malayo-Polynesian duʀi, from Proto-Austronesian duʀi — thorn.

Ancestry of “magdugi”, step by step

StepLanguageWordMeaning
1Bikol Centraldugifish bone; spine of a fish; mud
2Proto-Malayo-Polynesianduʀithorn
3Proto-Austronesianduʀithorn
Every word from Proto-Austronesian duʀi →Every word from Proto-Malayo-Polynesian duʀi →Every word from Bikol Central dugi →