trifluoroethyl

Etymology tree
Proto-Indo-European *tréyes
Proto-Indo-European *tri-
Proto-Italic *tri-
Latin tri-der.
English tri-
Proto-Indo-European *bʰel-der.
Proto-Indo-European *bʰlewH-der.
Proto-Indo-European *bʰluH-yé-ti?
Latin fluō
Proto-Indo-European *-os
Proto-Indo-European *-s
Proto-Indo-European *-ōs
Proto-Italic *-ōs
Latin -or
Latin fluorbor.
English fluor
Proto-Indo-European *-tósder.
Ancient Greek -της (-tēs)der.
Ancient Greek -ῑ́της (-ī́tēs)der.
Latin -ītēsbor.
French -iteder.
English -ite
English fluorite
Middle Low German sparder.
Old English spærstān
Middle English sparston
English sparstonebf.
English spar
blend
English fluorspar
Proto-Indo-European *-éh₁ti
Proto-Indo-European *-sḱéti
Proto-Indo-European *-éh₁sḱeti
Proto-Italic *-ēskō
Latin -ēscō
Latin -escensder.
English -escence
English fluorescencebf.
English fluoresce
English -ent
English fluor(escent)
English -o
English fluoro
English trifluoro
Proto-Indo-European *h₂eydʰ-der.
Proto-Hellenic *áitʰō
Ancient Greek αἴθω (aíthō)
▲
Ancient Greek ᾱ̓ήρ (āḗr)influ.?
Ancient Greek αἰθήρ (aithḗr)der.
Latin aethērbor.
German Äther
German Ether
Proto-Indo-European *swel-der.?
Ancient Greek ῡ̔́λη (hū́lē)der.
German -yl
German Ethylbor.
English ethyl
English trifluoroethyl
From trifluoro + ethyl.