The Internet Archive hosts several versions of the OED, ranging from the original 19th-century "fascicles" to the complete 1933 reissue and later editions.
So go ahead. Download that massive PDF. Spend an hour looking up the history of the word "set" (which has over 430 definitions). You are holding a century of scholarship in your hands, for exactly zero dollars. oxford english dictionary pdf archive.org
Having the OED available as a PDF archive means the "DNA of English" is now portable. Whether you are a student looking for a specific Victorian usage or a casual reader curious about the first recorded instance of a slang term, these archives transform a 20-volume heavyweight into a searchable, accessible digital companion. The Internet Archive hosts several versions of the