This volume functions as a comprehensive reference tool designed to identify the origins, historical context, and cultural significance of idiomatic phrases, fables, and proper names. Elizabeth M. Knowles leverages the extensive linguistic and historical archives of Oxford University Press to compile a systematic guide for researchers and casual readers alike. The text provides a structured framework for navigating the evolution of language, bridging the gap between classical mythology and contemporary pop culture references. By synthesizing diverse fields such as science, religion, and folklore, the work establishes a reliable repository for tracking the etymological roots of common expressions.

Experts and academics frequently cite this dictionary as a foundational resource for students of literature and cultural history. Readers often note the high density of information and the accessibility of the prose, making it a standard reference for both professional writers and curious browsers.