Where does “Cabaybay” come from?

Cabaybay (Cebuano) comes from Cebuano baybay, from Proto-Philippine *baybáy.

Ancestry of “Cabaybay”, step by step

Step	Language	Word	Meaning
1	Cebuano	baybay	a beach; a tall variety of coconut
2	Proto-Philippine	*baybáy	—