The English Dialect Dictionary
The English Dialect Dictionary (EDD) is the most comprehensive dictionary of English dialects ever published, compiled by the Yorkshire dialectologist Joseph Wright (1855–1930), with strong support by a team and his wife Elizabeth Mary Wright (1863–1958). The time of dialect use covered is, by and large, the Late Modern English period (1700–1903), but given Wright's historical interest, many entries contain information on etymological precursors of dialect words in centuries as far back as Old English and Middle English.