Where does “tatlundaan” come from?

tatlundaan (Tagalog) comes from Tagalog daan, from Proto-Philippine dalan, from Proto-Malayo-Polynesian zalan, from Proto-Austronesian zalan — path.

Ancestry of “tatlundaan”, step by step

tatlundaan traces back through two separate lines of ancestry.

via Tagalog daan

StepLanguageWordMeaning
1Tagalogdaanpath, way, road; hundred
2Proto-Philippinedalanpath a trail for the use of, or worn by, pedestrians; a course taken (made by humans as opposed to an animal)
3Proto-Malayo-Polynesianzalanpath
4Proto-Austronesianzalanpath

via Tagalog tatlo

StepLanguageWordMeaning
1Tagalogtatlothree
2Proto-Philippine*ta-təlu
Every word from Proto-Austronesian zalan