Where does “aʼbakuʼ” come from?

aʼbakuʼ (Makasar) comes from Makasar aʼ-, from Proto-Malayo-Polynesian *maʀ-.

Ancestry of “aʼbakuʼ”, step by step

Step	Language	Word	Meaning
1	Makasar	aʼ-	derivational prefix forming intransitive verbs from nouns and other roots
2	Proto-Malayo-Polynesian	*maʀ-	—