Where does “*tupu” come from?

*tupu (Proto-Malayo-Polynesian) comes from Proto-Malayo-Polynesian tubuq, from Proto-Austronesian tubuq, from Proto-Austronesian Cubuq, from Proto-Turkic *čï̄p.

Ancestry of “*tupu”, step by step

StepLanguageWordMeaning
1Proto-Malayo-Polynesiantubuqto grow
2Proto-Austronesiantubuq—
3Proto-AustronesianCubuqplant sprout
4Proto-Turkic*čï̄p—
Every word from Proto-Turkic *čï̄p →Every word from Proto-Austronesian Cubuq →Every word from Proto-Austronesian tubuq →