Where does “terombang-ambing” come from?

terombang-ambing (Indonesian) comes from Indonesian ter-, from Malay ter-, from Classical Malay ter-, from Proto-Malayic tAr-, from Proto-Malayo-Polynesian taʀ-, from Proto-Austronesian taʀ-.

terombang-ambing (Indonesian): adrift

Definitions

adrift

Ancestry of “terombang-ambing”, step by step

Step	Language	Word	Meaning
1	Indonesian	ter-	for passive intransitive verb, agentless actions,...
2	Malay	ter-	agentless actions, such as those which are...
3	Classical Malay	ter-	for passive intransitive verb, agentless actions,...
4	Proto-Malayic	tAr-	—
5	Proto-Malayo-Polynesian	taʀ-	—
6	Proto-Austronesian	taʀ-	—

Every word from Proto-Austronesian taʀ- →Every word from Indonesian ter- →Every word from Malay ter- →