interfilamentary

Etymology tree Proto-Indo-European *h₁én Proto-Indo-European *h₁entér Proto-Italic *ənter Latin inter Latin inter-bor. English inter- Proto-Indo-European *gʷʰiH-(s-)lo-der. Proto-Italic *fī(s)lom Latin fīlum Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-yéti Proto-Indo-European *-eh₂yéti Proto-Italic *-āō Latin -ō Late Latin fīlō Proto-Indo-European *-mn̥ Proto-Indo-European *-mn̥tom Proto-Italic *-məntom Latin -mentum Medieval Latin fīlāmentumbor. English filament Proto-Indo-European *-yósder. Proto-Italic *-āzios Latin -āriusder. Middle English -arie English -ary English filamentary English interfilamentary From inter- + filamentary.

来源：wiktionary