Huge ref. work

• Ref. section staple
• Shelf-filling ref. work
• Brit. word ref
• Ref. staple that used to come with a magnifying glass
• Reference wk. that added "YOLO" in 2016
• 20-volume ref. work
• Source with 600,000 words
• Voluminous ref. set
• Lexicographic behemoth, for short

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
initialism (acronym) of Oxford English Dictionary , attested from 1898, according to the "Oxford English Dictionary."