Where does “hababaw” come from?

hababaw (Bikol Central) comes from Bikol Central babaw, from Proto-Malayo-Polynesian *babaw, from Proto-Austronesian *babaw — upper surface.

Ancestry of “hababaw”, step by step

hababaw traces back through two separate lines of ancestry.

via Bikol Central babaw

StepLanguageWordMeaning
1Bikol Centralbabaw
2Proto-Malayo-Polynesian*babaw
3Proto-Austronesian*babawupper surface

via Bikol Central ha

StepLanguageWordMeaning
1Bikol Centralha
Every word from Proto-Austronesian *babaw