The story
- Proto-Indo-European*pleh₁-
- Proto-Indo-European*polh₁ús
- Ancient Greekπολῠ́ς (polŭ́s)
- Englishpoly-
- Englishquaternium
- English todaypolyquaternium
From poly- + quaternium.
Etymology from Wiktionary, CC BY-SA 4.0.
polyquaternium
Today it means: Any of a several classes of polymers having quaternary ammonium functional groups; they act as surfactants in shampoos and various hair products Full definition →
English quaternium ← Ancient Greek πολῠ́ς (polŭ́s) ← Proto-Indo-European *polh₁ús