Where does “fio” come from?

fio (Old Portuguese) comes from Latin fīlum, from Proto-Italic fī(s)lom, from Proto-Indo-European gʷʰiH-(s-)lo-.

Ancestry of “fio”, step by step

StepLanguageWordMeaning
1Latinfīlumthread, string, filament, fiber
2Proto-Italicfī(s)lom—
3Proto-Indo-EuropeangʷʰiH-(s-)lo-—

Words derived from “fio”

Every word from Proto-Indo-European gʷʰiH-(s-)lo- →Every word from Proto-Italic fī(s)lom →Every word from Latin fīlum →