O.E. æfre ælc "each of a group," lit. "ever each" (Chaucer's everich) with ever added for emphasis, as the word is still felt to need emphasis (Mod.Eng. every last ..., every single ..., etc.). Everybody is from c.1530, everyone is in M.E., everything is late 14c., everywhere is O.E. æfre gehwær. The word everywhen is attested from 1843, but never caught on; neither did everyhow (1837). Everyman was the name of the leading character in a 15c. morality play. Slang phrase every Tom, Dick, and Harry dates from at least 1734, from common English given names.