I feel a shiver that’s not from the cold as the band and the crowd go charging through the final notes…. That frisson, that exultant moment…. That’s how writer Robert W. Stock characterized the culmination of a big piece at a concert in 1982. His use of the word shiver is apt given that “frisson” comes from the French word for “shiver.” “Frisson” traces to Old French friçon, which in turn derives from “frictio,” Latin for friction. What does friction-normally a heat generator-have to do with thrills and chills? Nothing, actually. The association came about because “frictio” (which derives from Latin fricare, meaning “to rub”) was once mistakenly taken to be a derivative of “frigēre,” which means “to be cold.”