Where does “tétrapolaire” come from?
tétrapolaire (French) comes from French polaire, from Middle French polaire, from Latin polāris, from Latin polus, from Ancient Greek πόλος, from Proto-Indo-European kʷel- — to turn.
tétrapolaire (French): tetrapolar, quadripolar
Ancestry of “tétrapolaire”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | French | polaire | polar |
| 2 | Middle French | polaire | — |
| 3 | Latin | polāris | — |
| 4 | Latin | polus | pole |
| 5 | Ancient Greek | πόλος | pivot, hinge, axis, pole; axis of the celestial... |
| 6 | Proto-Indo-European | kʷel- | to turn |