This reference work investigates the etymological origins and historical evolution of over 17,000 place-names across Britain. A.D. Mills, a noted scholar in the field of onomastics, provides a comprehensive framework for understanding how linguistic shifts from various cultural influences have shaped the nomenclature of English, Irish, Welsh, and Scottish locations from antiquity to the modern era.

Experts and researchers frequently cite this volume as a foundational reference for the study of British toponymy. Readers note the academic rigor of the entries and the utility of the supplementary materials for both professional historians and amateur genealogists.