Definition of Yiddishism in English:

Yiddishism

noun

  • 1A Yiddish word or idiom, especially one adopted into another language:

    ‘I speak with many Brooklynisms and an occasional Yiddishism’
    • ‘Throughout the 20c, Yiddishisms have continued to make their way into English, increasingly as slang.’
    • ‘His speech was punctuated by Yiddishisms, Hebrew, Greek and Arabic.’
  • 2[mass noun] Advocacy of Yiddish culture:

    ‘forerunners of modern Yiddishism’

Pronunciation:

Yiddishism

/ˈjɪdɪʃɪz(ə)m/