Where does “tournesole” come from?

tournesole (Old French) comes from Latin tornāre, from Latin tornus, from Ancient Greek τόρνος, from Proto-Indo-European torh₂no-, from Proto-Indo-European terh₁- — to rub, turn; to drill, pierce.

Ancestry of “tournesole”, step by step

StepLanguageWordMeaning
1Latintornāre—
2LatintornusA turner's wheel, lathe; A potter's wheel
3Ancient GreekτόρνοςA tool similar to a pair of compasses used to...
4Proto-Indo-Europeantorh₂no-—
5Proto-Indo-Europeanterh₁-to rub, turn; to drill, pierce

Words derived from “tournesole”

Every word from Proto-Indo-European terh₁- →Every word from Proto-Indo-European torh₂no- →Every word from Ancient Greek τόρνος →