Where does “dual” come from?

dual (Romanian) comes from French duel, from Latin duālis, from Latin duō, from Proto-Italic duō, from Proto-Indo-European dwóh₁ — two.

dual (Romanian): dual

Definitions

  1. dual

Ancestry of “dual”, step by step

StepLanguageWordMeaning
1Frenchdueldual; duel
2Latinduālisdual
3Latinduōtwo; 2
4Proto-Italicduōtwo
5Proto-Indo-Europeandwóh₁two
Every word from Proto-Indo-European dwóh₁ →Every word from Proto-Italic duō →Every word from Latin duō →