"Athanasian wench" is a rarely used phrase that has a peculiar spelling. The word "Athanasian" is pronounced as /æθəˈneɪziən/ (a-thuh-NEY-zee-uhn), while "wench" is pronounced as /wen(t)ʃ/ (wench). The term originated from the Latin Athanasian Creed, which was used to express the doctrine of the Trinity. The phrase was used to describe a female companion who was seen as unfaithful to her partner. Although not commonly used, the phrase highlights the importance of understanding the etymology and pronunciation of words for effective communication.