UrsprungFrom Old Norse frost, from Proto-Germanic *frustą, *frustaz.
Formerfrost(indefinite, nominative, singular) · frosts(genitive, indefinite, singular) · frosten(definite, nominative, singular) · frostens(definite, genitive, singular) · -(indefinite, nominative, plural) · -(genitive, indefinite, plural) · -(definite, nominative, plural) · -(definite, genitive, plural)