Where does “sāpa” come from?

sāpa (Pali) comes from Old Javanese sa-, from Proto-Malayo-Polynesian əsa, from Proto-Austronesian *əsa, from Proto-Oceanic *isa.

Ancestry of “sāpa”, step by step

StepLanguageWordMeaning
1Old Javanesesa-one
2Proto-Malayo-Polynesianəsaone
3Proto-Austronesian*əsa—
4Proto-Oceanic*isa—

Words derived from “sāpa”

Every word from Proto-Oceanic *isa →Every word from Proto-Austronesian *əsa →Every word from Proto-Malayo-Polynesian əsa →