Where does “memperbagus” come from?

memperbagus (Indonesian) comes from Indonesian memper-, from Indonesian meng-, from Malay meng-, from Proto-Malayic *mAN-, from Proto-Malayo-Chamic *maN-, from Proto-Malayo-Sumbawan *maN-, from Proto-Malayo-Polynesian *maN- — inflectional prefix marking actor voice.

Ancestry of “memperbagus”, step by step

StepLanguageWordMeaning
1Indonesianmemper-
2Indonesianmeng-agent focus, frequently but erroneously called...
3Malaymeng-agent focus, frequently but erroneously called...
4Proto-Malayic*mAN-
5Proto-Malayo-Chamic*maN-
6Proto-Malayo-Sumbawan*maN-
7Proto-Malayo-Polynesian*maN-inflectional prefix marking actor voice
Every word from Proto-Malayo-Polynesian *maN-Every word from Indonesian meng-Every word from Malay meng-