Where does “Yiddishness” come from?

Yiddishness (English) comes from English Yiddish, from Yiddish ייִדיש, from Yiddish ייִד, from Middle High German jüde, from Old High German judo, from Latin Iūdaeus, from Ancient Greek Ἰουδαῖος, from Ancient Greek Ἰουδά — Judas; Judah, Judas.

Yiddishness (English): The quality of being Yiddish

Definitions

  1. The quality of being Yiddish

Ancestry of “Yiddishness”, step by step

Yiddishness traces back through two separate lines of ancestry.

via English Yiddish

StepLanguageWordMeaning
1EnglishYiddishOf or pertaining to the Yiddish language; Jewish;...
2YiddishייִדישJewish; Yiddish
3Yiddishייִדa Jew
4Middle High Germanjüdea Jew
5Old High Germanjudo
6LatinIūdaeusJewish, of or pertaining to the Jewish people
7Ancient GreekἸουδαῖοςJew or Judean
8Ancient GreekἸουδάJudah
9HebrewיְהוּדָהJudas; Judah, Judas

via English Ness

StepLanguageWordMeaning
1EnglishNessAn Ulster princess and the mother of Conchobar mac Nessa and Findchoem in the Ulster Cycle of Irish mythology. Daughter of Eochaid Sálbuide. Also the mother of Cormac Cond Longas by incest with Conchobar mac Nessa
2Middle Englishnesse
3Old Englishnæsnot, not at all; not; first/third-person singular...
4Proto-Germanicnasjąfoothill; headland; cape
5Proto-Indo-Europeannéh₂snose
Every word from Hebrew יְהוּדָהEvery word from Ancient Greek ἸουδάEvery word from Ancient Greek Ἰουδαῖος