Where does “иноязычный” come from?

иноязычный (Russian) comes from Russian язы́к, from Old East Slavic ѧзꙑкъ, from Proto-Slavic ęzykъ, from Proto-Balto-Slavic inźūˀ-kas, from Proto-Balto-Slavic *inźūˀs, from Proto-Balto-Slavic *dinźūˀs, from Proto-Indo-European dn̥ǵʰwéh₂s — tongue.

иноязычный (Russian): foreign-language

Definitions

  1. foreign-language

Ancestry of “иноязычный”, step by step

иноязычный traces back through two separate lines of ancestry.

via Russian язы́к

StepLanguageWordMeaning
1Russianязы́кtongue; language
2Old East Slavicѧзꙑкъa tongue
3Proto-Slavicęzykъtongue; language
4Proto-Balto-Slavicinźūˀ-kas—
5Proto-Balto-Slavic*inźūˀstongue
6Proto-Balto-Slavic*dinźūˀs—
7Proto-Indo-Europeandn̥ǵʰwéh₂stongue

via Russian ино́й

StepLanguageWordMeaning
1Russianино́йdifferent; other
2Old East Slavicинъother, another
3Proto-Slavicjьnъother, another; different
4Proto-Balto-Slavic*iˀnas—
5Proto-Indo-Europeanóynosone; single
Every word from Proto-Indo-European dn̥ǵʰwéh₂s →Every word from Proto-Balto-Slavic *dinźūˀs →Every word from Proto-Balto-Slavic *inźūˀs →