Where does “*tobu” come from?

*tobu (Proto-Eastern Malayo-Polynesian) comes from Proto-Central-Eastern Malayo-Polynesian *təbu, from Proto-Malayo-Polynesian təbuh, from Proto-Austronesian təbuS — sugarcane.

Ancestry of “*tobu”, step by step

StepLanguageWordMeaning
1Proto-Central-Eastern Malayo-Polynesian*təbu—
2Proto-Malayo-Polynesiantəbuhsugar cane
3Proto-AustronesiantəbuSsugarcane

Words derived from “*tobu”

Every word from Proto-Austronesian təbuS →Every word from Proto-Malayo-Polynesian təbuh →Every word from Proto-Central-Eastern Malayo-Polynesian *təbu →