Where does “filamentum” come from?

filamentum (Medieval Latin) comes from Late Latin filo, from Latin fīlum, from Proto-Italic fī(s)lom, from Proto-Indo-European gʷʰiH-(s-)lo-.

Ancestry of “filamentum”, step by step

StepLanguageWordMeaning
1Late Latinfiloto spin, draw out in a long line; dative singular...
2Latinfīlumthread, string, filament, fiber
3Proto-Italicfī(s)lom—
4Proto-Indo-EuropeangʷʰiH-(s-)lo-—

Words derived from “filamentum”

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