UrsprungBorrowed from Italian pesto.
Formerpesto(indefinite, nominative, singular) · pestos(genitive, indefinite, singular) · peston(definite, nominative, singular) · pestons(definite, genitive, singular) · -(indefinite, nominative, plural) · -(genitive, indefinite, plural) · -(definite, nominative, plural) · -(definite, genitive, plural)