Newfiern.
Origin: Formed within English, by derivation. Etymons: Newfie n., -er suffix1.
Etymology: < Newfie n. (compare sense 1 at that entry) + -er suffix1.
Canadian colloquial.
rare.
1942 L. V. Berrey & M. Van den Bark §385/5 Newfie, Newfier, a Newfoundlander.
This is a new entry (OED Third Edition, September 2003; most recently modified version published online March 2022).