Where does “duo” come from?

duo (Norwegian Bokmål) comes from Italian duo, from Latin duō, from Proto-Italic duō, from Proto-Indo-European dwóh₁ — two.

duo (Norwegian Bokmål): a duo

Definitions

  1. a duo

Ancestry of “duo”, step by step

StepLanguageWordMeaning
1ItalianduoObsolete form of due; duo; duet
2Latinduōtwo; 2
3Proto-Italicduōtwo
4Proto-Indo-Europeandwóh₁two
Every word from Proto-Indo-European dwóh₁ →Every word from Proto-Italic duō →Every word from Latin duō →
duo — Etymology, Origin & Word History | Etymology Explorer