Which ancient language provided the name for Duolingo, the popular language learning platform?

Behind every successful language learning platform is a thoughtful brand name with linguistic significance. Many companies in this industry choose names with deep etymological roots or multilingual meanings. This poll tests your knowledge of brand history in the language learning and linguistics technology sector, focusing on the origins of one particularly famous name.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Latin: 'duo' (two) + 'lingua' (language/tongue)
Greek: 'dyó' (two) + 'logos' (word/speech)
Sanskrit: 'dvi' (two) + 'linga' (mark/symbol)
Esperanto: 'du' (two) + 'lingvo' (language)