Where does “ako” come from?

ako (Bikol Central) comes from Proto-Philippine *aku, from Proto-Malayo-Polynesian aku, from Proto-Austronesian aku.

Ancestry of “ako”, step by step

StepLanguageWordMeaning
1Proto-Philippine*aku—
2Proto-Malayo-Polynesianaku—
3Proto-Austronesianaku—
Every word from Proto-Austronesian aku →Every word from Proto-Malayo-Polynesian aku →Every word from Proto-Philippine *aku →