Where does “mengaku” come from?

mengaku (Kapampangan) comes from Kapampangan aku, from Proto-Philippine *aku, from Proto-Malayo-Polynesian aku, from Proto-Austronesian aku.

Ancestry of “mengaku”, step by step

mengaku traces back through two separate lines of ancestry.

via Kapampangan aku

StepLanguageWordMeaning
1KapampanganakuI; me; my
2Proto-Philippine*aku
3Proto-Malayo-Polynesianaku
4Proto-Austronesianaku

via Kapampangan meng

StepLanguageWordMeaning
1Kapampanganmeng
Every word from Proto-Austronesian aku