Where does “pamitak” come from?

pamitak (Tagalog) comes from Tagalog bitak, from Proto-Malayo-Polynesian *bətak, from Proto-Austronesian *bətak.

Ancestry of “pamitak”, step by step

StepLanguageWordMeaning
1Tagalogbitakcrack; fissure; crevice
2Proto-Malayo-Polynesian*bətak—
3Proto-Austronesian*bətak—
Every word from Proto-Austronesian *bətak →Every word from Proto-Malayo-Polynesian *bətak →Every word from Tagalog bitak →