The Austronesian Comparative Dictionary

*sumbuŋ to accuse, to inform on someone

PPh sumbuŋ to accuse, to inform on someone

WMP
Ayta Abellan homboŋ to tell on, to report
Kapampangan i-sumbuŋ to accuse, denounce, tattle on
Tagalog sumbóŋ accusation, complaint
Manobo (Western Bukidnon) sumbuŋ to accuse
Bikol i-sumbóŋ to tattle or squeal about; to report about