Where does “katulunan” come from?

katulunan (Tagalog) comes from Tagalog -an, from Proto-Philippine *-an, from Proto-Malayo-Polynesian -an, from Proto-Austronesian -an — Verbal suffix marking locative focus; Nominal...

Ancestry of “katulunan”, step by step

Step	Language	Word	Meaning
1	Tagalog	-an	object trigger: to do something to a person or a...
2	Proto-Philippine	*-an	verbal suffix marking locative focus
3	Proto-Malayo-Polynesian	-an	Verbal suffix marking locative focus; Nominal...
4	Proto-Austronesian	-an	Verbal suffix marking locative focus; Nominal...

Every word from Proto-Austronesian -an →Every word from Tagalog -an →Every word from Proto-Philippine *-an →