Where does “otsenta” come from?

otsenta (Bikol Central) comes from Spanish ochenta, from Old Spanish ochaenta, from Latin octāgintā, from Proto-Indo-European oktōḱomt, from Proto-Indo-European oḱto(w)-dḱomt — eight-ten.

Ancestry of “otsenta”, step by step

StepLanguageWordMeaning
1Spanishochentaeighty; fourscore
2Old Spanishochaenta
3Latinoctāgintāeighty; 80
4Proto-Indo-Europeanoktōḱomt
5Proto-Indo-Europeanoḱto(w)-dḱomteight-ten
Every word from Proto-Indo-European oḱto(w)-dḱomtEvery word from Proto-Indo-European oktōḱomtEvery word from Latin octāgintā