Where does “उनसा” come from?

उनसा (Hindi) comes from Hindi सा, from Sanskrit सम, from Proto-Indo-Iranian samHás, from Proto-Indo-European somHós, from Proto-Indo-European sem- — together, one.

Ancestry of “उनसा”, step by step

उनसा traces back through two separate lines of ancestry.

via Hindi सा

StepLanguageWordMeaning
1Hindiसाthe first note of the Indian solfege – षड्ज
2Sanskritसमsame, equal, alike; equivalent to, like,...
3Proto-Indo-IraniansamHássame, equal
4Proto-Indo-EuropeansomHóssame, alike
5Proto-Indo-Europeansem-together, one

via Hindi उन

StepLanguageWordMeaning
1Hindiउनthose; him; her
Every word from Proto-Indo-European sem-Every word from Proto-Indo-European somHósEvery word from Proto-Indo-Iranian samHás