Where does “pangiturogan” come from?

pangiturogan (Bikol Central) comes from Bikol Central pangiturog, from Bikol Central iturog, from Bikol Central turog, from Proto-Philippine *tuduʀ, from Proto-Malayo-Polynesian tuduʀ, from Proto-Austronesian tuduʀ — to sleep.

Ancestry of “pangiturogan”, step by step

StepLanguageWordMeaning
1Bikol Centralpangiturog—
2Bikol Centraliturog—
3Bikol Centralturog—
4Proto-Philippine*tuduʀto sleep
5Proto-Malayo-Polynesiantuduʀto sleep
6Proto-Austronesiantuduʀto sleep
Every word from Proto-Austronesian tuduʀ →Every word from Proto-Malayo-Polynesian tuduʀ →Every word from Proto-Philippine *tuduʀ →