One of the mysteries of the English language finally explained.
Early 20th century. From French polysémie (M. Bréal Essai de sémantique xiv. 155; compare quot. 1900; from post-classical Latin polysemus or its etymon ancient Greek πολύσημος + French -ie), with alteration of the ending after words in -ia.
In this article we explore how to impress employers with a spot-on CV.