Where does “nostro” come from?

nostro (Old Portuguese) comes from Ecclesiastical Latin nostrum, from Latin noster, from Proto-Italic nosteros, from Proto-Indo-European nos, from Proto-Indo-European éǵh₂ — I.

nostro (Old Portuguese): First-person possessive pronoun. Our

Definitions

  1. First-person possessive pronoun. Our

Ancestry of “nostro”, step by step

StepLanguageWordMeaning
1Ecclesiastical Latinnostrumof us; partitive genitive of nōs; nominative...
2Latinnosterour, ours
3Proto-Italicnosterosour
4Proto-Indo-Europeannos—
5Proto-Indo-Europeanéǵh₂I
Every word from Proto-Indo-European éǵh₂ →Every word from Proto-Indo-European nos →Every word from Proto-Italic nosteros →