Where does “oytenta” come from?

oytenta (Old Portuguese) comes from Latin octāgintā, from Proto-Indo-European oktōḱomt, from Proto-Indo-European oḱto(w)-dḱomt — eight-ten.

Ancestry of “oytenta”, step by step

StepLanguageWordMeaning
1Latinoctāgintāeighty; 80
2Proto-Indo-Europeanoktōḱomt—
3Proto-Indo-Europeanoḱto(w)-dḱomteight-ten

Words derived from “oytenta”

Every word from Proto-Indo-European oḱto(w)-dḱomt →Every word from Proto-Indo-European oktōḱomt →Every word from Latin octāgintā →