Origins: A Short Etymological Dictionary of Modern English (PDF/EPUB Version)

This etymological dictionary gives the origins of some 20,000 items from the modern English vocabulary, discussing them in groups that make clear the connections between words derived by a variety of routes from originally common stock.

As well as giving the answers to questions about the derivation of individual words, it is a fascinating book to browse through, and includes extensive lists of prefixes, suffixes, and elements used in the creation of new vocabulary.