English
terpolymer
From ter- + polymer.
Proto-Indo-European *tri- ‘three’
Proto-Indo-European *trís ‘thrice (three times)’
Proto-Italic *tris
Old Latin *tris
Latin ter ‘three times’
English ter-
Today it means
noun A copolymer derived from three species of monomer.
Language periods are conventional ranges, not dates for this word.
Etymograph / terpolymer