Where does “bukas” come from?

bukas (Bikol Central) comes from Proto-Malayo-Polynesian bu(ŋ)kas, from Proto-Austronesian bukas — to release; to undo.

Ancestry of “bukas”, step by step

StepLanguageWordMeaning
1Proto-Malayo-Polynesianbu(ŋ)kas—
2Proto-Austronesianbukasto release; to undo
Every word from Proto-Austronesian bukas →Every word from Proto-Malayo-Polynesian bu(ŋ)kas →