Where does “fin” come from?

fin (Old Portuguese) comes from Latin fīnis, from Proto-Indo-European dʰnh₂-.

Ancestry of “fin”, step by step

StepLanguageWordMeaning
1Latinfīnisend
2Proto-Indo-Europeandʰnh₂-—

Words derived from “fin”

Every word from Proto-Indo-European dʰnh₂- →Every word from Latin fīnis →
fin — Etymology, Origin & Word History | Etymology Explorer