The story
- Proto-Indo-European*gew-
- Ancient Greekγῦρος (gûros)
- Frenchgyro-
- Proto-Indo-European*speḱ-
- Proto-Indo-European*spéḱyeti
- Proto-Hellenic*sképt͏̌omai
- Ancient Greekσκέπτομαι (sképtomai)
- Ancient Greekσκοπός (skopós)
- Ancient Greekσκοπέω (skopéō)
- Frenchgyroscope
- English todaygyroscope
Borrowed from French gyroscope, coined in 1852 by physicist Leon Foucault, equivalent to gyro- + -scope, from Ancient Greek γῦρος (gûros, “circle”) and σκοπός (skopós, “watcher”).
Words from the same roots
Ancient Greekγῦρος all →
girogyrusgyrationgyregyrategyro-gyrogonite
Etymology from Wiktionary, CC BY-SA 4.0.