Historical Thesaurus of the Oxford English Dictionary
With Additional Material From "A Thesaurus of Old English"
A 40-year project in the making, the Historical Thesaurus of the Oxford English Dictionary is the first historical thesaurus to include almost the entire vocabulary of English, from Old English to the present day. Conceived and compiled by the Department of English Language of the University of Glasgow, the Historical Thesaurus of the Oxford English Dictionary is a groundbreaking analysis of the historical inventory of English, allowing users to find words connected in meaning throughout the history of the language. ---From publisher description.