Where does “Mendiola” come from?

Mendiola (Tagalog) comes from Spanish Mendiola, from Basque Mendiola, from Basque mendi, from Proto-Basque bendi.

Ancestry of “Mendiola”, step by step

Step	Language	Word	Meaning
1	Spanish	Mendiola	—
2	Basque	Mendiola	—
3	Basque	mendi	mountain
4	Proto-Basque	bendi	—

Mendiola — Etymology, Origin & Word History | Etymology Explorer