The English word "lord" is hiding a loaf of bread. It descends from the Old English hlaford, a compound of hlaf (loaf) and weard (warden): a lord was literally a bread-guardian, the person who controlled the food supply in an age when famine was constant and power belonged to whoever could feed and protect. "Lady" is hiding bread too: it comes from hlaefdige, meaning "bread-kneader." A thousand years of use have worn these words smooth, but the bread is still inside them, and once you know how to look, you'll find that almost every word in the English language is carrying a similar secret: a compressed history of conquest, invention, migration, fear, or desire that tells you something about human civilization. “Travel" comes from the French word for torment, "disaster" literally means "bad star," and "companion" means someone you share bread with.

Today's guest is Olivia Swarthout, author of The Wordspotter's Guide: Etymological Adventures Through the English Language. We discuss how her geologist father taught her to read the history of ancient oceans in Montana rocks and she learned to apply the same method to words, why "unfriend" is a seventeenth-century word and "escalate" didn't exist until 1959, and how the Norman Conquest permanently split English into a two-tier vocabulary where the peasants who raised the animals kept the Germanic words (cow, sheep, pig) while the lords who ate them imposed French words for the meat (beef, mutton, pork). Every word you use carries the compressed experience of thousands of years of human civilization hidden in plain sight.