Where does “apat na pulo” come from?

apat na pulo (Bikol Central) comes from Bikol Central apat, from Proto-Philippine əpat, from Proto-Malayo-Polynesian əpat, from Proto-Austronesian Səpat — four.

Ancestry of “apat na pulo”, step by step

apat na pulo traces back through 3 separate lines of ancestry.

via Bikol Central apat

StepLanguageWordMeaning
1Bikol Centralapatfour
2Proto-Philippineəpatfour
3Proto-Malayo-Polynesianəpatfour
4Proto-AustronesianSəpatfour

via Bikol Central na

StepLanguageWordMeaning
1Bikol Centralna—

via Bikol Central pulo

StepLanguageWordMeaning
1Bikol Centralpulo—
Every word from Proto-Austronesian Səpat →Every word from Proto-Malayo-Polynesian əpat →Every word from Proto-Philippine əpat →