From Wiktionary, the free dictionary
Clipping of hanayan.
-nayan (noun-forming suffix, Baybayin spelling ᜈᜌᜈ᜔)
- (neologism) -logy, -ology; the study of
- buhay (“life”) + -nayan → haynayan (“biology”)
- sangkap (“essence”) + -nayan → kapnayan (“chemistry”)