Where does “kasawaan” come from?

kasawaan (Bikol Central) comes from Bikol Central sawa, from Proto-Philippine sawa, from Proto-Malayo-Polynesian sawa.

Ancestry of “kasawaan”, step by step

kasawaan traces back through two separate lines of ancestry.

via Bikol Central sawa

StepLanguageWordMeaning
1Bikol Centralsawapython; boa constrictor
2Proto-Philippinesawa—
3Proto-Malayo-Polynesiansawa—

via Bikol Central ka- -an

StepLanguageWordMeaning
1Bikol Centralka- -an—
Every word from Proto-Malayo-Polynesian sawa →Every word from Proto-Philippine sawa →Every word from Bikol Central sawa →