Where does “Theaetetus” come from?

Theaetetus derives from Ancient Greek Θεαίτητος, composed of θεός (god) from Proto-Indo-European dʰh₁s-, itself from the root dʰeh₁- meaning to place or set.

Theaetetus (English): A classical Greek mathematician credited with proving that there are precisely five regular convex polyhedra

Definitions

  1. A classical Greek mathematician credited with proving that there are precisely five regular convex polyhedra

Ancestry of “Theaetetus”, step by step

StepLanguageWordMeaning
1Ancient GreekΘεαίτητος
2Ancient Greekαἰτητόςasked for, requested
3Ancient Greekαἰτέωto ask for, crave, demand, beg; or with object omitted
4Ancient Greek-έωUsed to form verbs from nouns, adjectives and...
5Proto-Indo-European-éyetiForms causative imperfective verbs from roots;...
6Proto-Indo-European-yetiCreates transitive imperfective verbs from roots
Every word from Proto-Indo-European -yetiEvery word from Ancient Greek -έωEvery word from Proto-Indo-European -éyeti