What are words? Where do words come from? How are they used? Answering these questions and more, this book guides you through the key concepts in the lexicology of modern English. Providing an overview which encompasses all aspects of English vocabulary, this book explains the sources of modern English words and shows how the vocabulary has developed over time. Thoroughly updated throughout to keep pace with recent developments in the field, this third edition features: - Enhanced chapters on vocabulary, dictionaries and investigative lexicology - New sections on contemporary topics such as internet language, social media and youth culture - Guides to new electronic resources and tools of analysis - Exercises throughout each chapter, with an updated answer key - A revised list of suggestions for further reading Assuming no prior knowledge of linguistics, and featuring exercises and a fully updated glossary of lexicological terms to support your learning, An Introduction to English Lexicology is the only book you need to understand the basics of English lexicology.