Where does “kaisogan” come from?

kaisogan (Bikol Central) comes from Bikol Central isog, from Proto-Malayo-Polynesian *isuʀ.

Ancestry of “kaisogan”, step by step

kaisogan traces back through two separate lines of ancestry.

via Bikol Central isog

StepLanguageWordMeaning
1Bikol Centralisog—
2Proto-Malayo-Polynesian*isuʀ—

via Bikol Central ka- -an

StepLanguageWordMeaning
1Bikol Centralka- -an—
Every word from Proto-Malayo-Polynesian *isuʀ →