Where does “kaumahan” come from?

kaumahan (Bikol Central) comes from Bikol Central uma, from Proto-Malayo-Polynesian *quma, from Proto-Austronesian *qumah — swidden.

Ancestry of “kaumahan”, step by step

kaumahan traces back through two separate lines of ancestry.

via Bikol Central uma

StepLanguageWordMeaning
1Bikol Centraluma—
2Proto-Malayo-Polynesian*qumafarm
3Proto-Austronesian*qumahswidden

via Bikol Central ka- -an

StepLanguageWordMeaning
1Bikol Centralka- -an—
Every word from Proto-Austronesian *qumah →Every word from Proto-Malayo-Polynesian *quma →Every word from Bikol Central uma →