Where does “katoy” come from?

katoy (Bikol Central) comes from Proto-Malayo-Polynesian qatay, from Proto-Austronesian qaCay — liver.

Ancestry of “katoy”, step by step

StepLanguageWordMeaning
1Proto-Malayo-Polynesianqatayliver
2Proto-AustronesianqaCayliver
Every word from Proto-Austronesian qaCay →Every word from Proto-Malayo-Polynesian qatay →