Where does “bangko” come from?

bangko (Bikol Central) comes from Spanish Banco, from Old French bank, from Proto-Germanic bankiz, from Proto-Indo-European bʰeg- — to break.

Ancestry of “bangko”, step by step

StepLanguageWordMeaning
1SpanishBancobank
2Old Frenchbank—
3Proto-Germanicbankiza raised surface; bulge; hillock; slope; bench
4Proto-Indo-Europeanbʰeg-to break
Every word from Proto-Indo-European bʰeg- →Every word from Proto-Germanic bankiz →Every word from Old French bank →
bangko — Etymology, Origin & Word History | Etymology Explorer