OpprinnelseFrom Old Norse frest n, Proto-Germanic *frestą (“date; appointed time”), from *fres (“forward”), from Proto-Indo-European *pres- (“to press”), perhaps from Proto-Indo-European *per- (“to attempt, try, risk”).
Bøyningerfristen(definite, singular) · frister(indefinite, plural) · fristene(definite, plural)
Kilde: Wiktionary