Somewhere along the way, the word “cool” became “the most popular slang term of approval in English.” Humanities has a pretty cool (hip, rad, dope, groovy, punk, hot, sweet) theory, tracing it as far back as Zora Neale Hurston’s collection Mules and Men, and the time when “cool was black… cool was jazz.” (Related reading: the most excellent Hepster’s Dictionary (pdf) of 1939 jive talk, and our own history of the slang word “like.”)
