Where does “Innuitians” come from?

Innuitians (English) comes from English Innuitian, from Inuktitut ᐃᓄᐃᑦ, from Proto-Inuit inuɣ, from Proto-Eskimo-Aleut *iŋuɣ.

Ancestry of “Innuitians”, step by step

Innuitians traces back through two separate lines of ancestry.

via English Innuitian

StepLanguageWordMeaning
1EnglishInnuitianPertaining to the Inuit
2Inuktitutᐃᓄᐃᑦpeople
3Proto-Inuitinuɣman, person
4Proto-Eskimo-Aleut*iŋuɣ

via English S

StepLanguageWordMeaning
1EnglishSThe ordinal number nineteenth, derived from this...
Every word from Proto-Eskimo-Aleut *iŋuɣEvery word from Proto-Inuit inuɣEvery word from Inuktitut ᐃᓄᐃᑦ