Is 'nudnik' English, or is it actually Yiddish?

'Nudnik' is a word borrowed from Yiddish 'nudnik'. The word entered the English language some time around 1947.

nudnik [noun] [1947]

A person who is a bore or nuisance

See 'nudnik' on the Loan Words Map

See more loan words from Yiddish.

Etymology: Yiddish 'nudnik' from 'nudyen' to bore, from Polish 'nudzić' from 'nuda' boredom

See more loan words from 1940s.