Where does “parainom” come from?

parainom (Bikol Central) comes from Bikol Central inom, from Proto-Malayo-Polynesian inum, from Proto-Austronesian *inum.

Ancestry of “parainom”, step by step

StepLanguageWordMeaning
1Bikol Centralinom—
2Proto-Malayo-Polynesianinumto drink
3Proto-Austronesian*inum—
Every word from Proto-Austronesian *inum →Every word from Proto-Malayo-Polynesian inum →Every word from Bikol Central inom →