Yo!

The word “yo” — as in “Yo Adrian, I did it!” — is thought to have originated sometime in the 1940s or so among Italians in Philadelphia. But there’s a case to be made that it traces back to Old English. Visit ⁠⁠Lexicon Valley⁠⁠. A Booksmart Studios production. Bonus: "Yo!" With John McWhorter. Produced and edited by Mike Vuolo. All rights reserved.