America’s Greatest Word

One of the most frequently used words in the world: OK, often spelled okay, originated in the United States but is now recognized and used by speakers all over the world. How the two-letter agreement become so popular in less than 200 years is the topic of Allan...

40 Weird Word Origins

Did you know “mortgage” comes from the French for “death pledge”? Or that “senator” shares its root with “senile”? Mental Floss’s John Green explains 40 weird word origins in this video: