Where does “oitenta” come from?
oitenta (Kabuverdianu) comes from Portuguese oitenta, from Old Portuguese oytenta, from Latin octāgintā, from Proto-Indo-European oktōḱomt, from Proto-Indo-European oḱto(w)-dḱomt — eight-ten.
oitenta (Kabuverdianu): eighty
Ancestry of “oitenta”, step by step