Where does “dioptru” come from?

dioptru (Romanian) comes from French dioptre, from Latin dioptra, from Ancient Greek διοπτρα — to see through.

dioptru (Romanian): diopter

Definitions

  1. diopter

Ancestry of “dioptru”, step by step

StepLanguageWordMeaning
1Frenchdioptrediopter
2Latindioptra
3Ancient Greekδιοπτραto see through
Every word from Ancient Greek διοπτραEvery word from Latin dioptraEvery word from French dioptre