Linguist Gareth Roberts joins WIRED to answer the internet's burning questions about the etymologies of English words. How did the first languages first form? Was there once a single common language that all the others evolved from? When were swear words invented? Have words like "dude" and "bro" become gender neutral? Who came up with the word poop? Is "unalived" a real word now? Answers to all of these questions and plenty more await on Etymology Support.