frister is the masculine plural indefinite of frist.

fristN

Kven

fristiN

Norwegian Bokmål – Kvendict-nob-fkv/src/N_nobfkv.xml:80822Edit on GitHub Suggest

1áigemearriN

2(påmeldingsfrist)dieđihanáigemearriN

Norsk-nordsamisk ordbokdict-nob-sme/src/N_nobsme.xml:176839Edit on GitHub Suggest

Case	Sg	Pl
Indef	frist	frister
Def	fristen	fristene