Where does “filamentous” come from?

Filamentous comes from English filament plus the suffix -ous, from Old French -eux, from Latin -ōsus, ultimately from Proto-Indo-European gʷʰiH-(s-)lo-.

filamentous (English): Having the form of threads or filaments;...

Definitions

  1. Having the form of threads or filaments;...

Ancestry of “filamentous”, step by step

StepLanguageWordMeaning
1EnglishfilamentA fine thread or wire; Such a wire, as can be...
2Medieval Latinfilamentum—
3Late Latinfiloto spin, draw out in a long line; dative singular...
4Latinfīlumthread, string, filament, fiber
5Proto-Italicfī(s)lom—
6Proto-Indo-EuropeangʷʰiH-(s-)lo-—

Words derived from “filamentous”

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