The story
- Proto-Indo-European*kʷetwóres
- Proto-Indo-European*kʷetwr̥-
- Proto-Italic*kʷetru-
- Latinquadri-
- Englishquadri-clip.
- Englishquad-
- Proto-Indo-European*welH-
- Ancient Greekἕλιξ (hélix)
- Proto-Indo-European*peth₂-
- Proto-Indo-European*péth₂r̥
- Proto-Hellenic*pterón
- Ancient Greekπτερόν (pterón)
- Frenchhélicoptère
- Englishhelicopterclip.
- Englishcopter
- English todayquadcopter
Etymology from Wiktionary, CC BY-SA 4.0.