- (used to express mild disgust, disapprobation, annoyance, etc.)
- (used to express the humorous pretense of being shocked.)
- obsolete, or facetious an exclamation of distaste or mock dismay
late 13c., possibly from Old French fi, exclamation of disapproval, and reinforced by a Scandinavian form (cf. Old Norse fy); it’s a general sound of disgust that seems to have developed independently in many languages.