fie

The word "fie" entered Middle English from the Old French exclamation "fi," which itself is of uncertain origin but is thought to be a natural expression of disgust. It is likely onomatopoeic or echoic in nature, mimicking a sound of repulsion or contempt. The term was commonly used in Early Modern English literature to convey scorn or indignation, often in a somewhat theatrical or formal context. While now considered archaic, it survives in fixed phrases and historical or literary references, capturing a specific tone of moral or aesthetic offense.

This is a simplex word, an exclamation borrowed into Middle English.