Etymology

filamentless

F4I1L1A1M3E1N1T1L1E1S1S1

Today it means: Without a filament. Full definition →

Proto-Germanic *lausaz ← Proto-Indo-European *lewHs- ← English filament
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The story

  1. Proto-Indo-European*gʷʰiH-(s-)lo-
  2. Proto-Italic*fī(s)lom
  3. Latinfīlum
  4. Late Latinfīlō
  5. Medieval Latinfīlāmentum
  6. Englishfilament
  7. Proto-Indo-European*lewh₁-
  8. Proto-Indo-European*lewHs-
  9. Proto-Germanic*leusaną
  10. Proto-Germanic*lausaz
  11. English todayfilamentless

From filament + -less.

Etymology from Wiktionary, CC BY-SA 4.0.