A WORD, PLEASE — robot

continuity: Next, Professor Aubrey Vellum, with a word that first stepped onto a stage in Prague and hasn't stopped working since.

the verdict: Have you ever watched a robot vacuum wedge itself under the sofa, then just sit there humming, waiting for a human to come and rescue it? It was supposed to do the chores for us, and somehow we end up working for it.

a word, please: Robot. A word, please.

the crack: This one has a birthday, which almost never happens. In nineteen twenty, in Prague, a Czech playwright named Karel Čapek was writing a play about a factory that makes artificial workers, and he was stuck on what to call them. He'd tried labori , from the Latin for work, but it sounded stiff and bookish. So he went to his brother Josef , a painter, who was standing at his easel with brushes clenched between his teeth. Josef barely looked up and mumbled, 'Then call them robots.' He'd reached for the Czech word robota , the forced, back-breaking labor a peasant owed his lord, and that word runs back to an old Slavic root meaning slave. People often give Karel the credit, since his name is on the play, but the word was his brother's, and the paintbrush version is the true one.

the collision: The play opened in Prague in nineteen twenty-one, and by nineteen twenty-three it was in English. Audiences everywhere carried that sharp little word home with them. And here's the twist: in the play, the robots don't stay obedient. They rise up. A century later, robots build our cars, roll across Mars, and yes, get stuck under the sofa. We hear the word and picture something shiny, clever, and futuristic. But tucked inside it the whole time is a tired peasant in a field, doing work somebody else didn't want to do.

the glimmer: So the robot was never really about metal. It carries the oldest wish people have, to be spared the drudgery, and the oldest worry too: what happens to whoever we hand it to.

the exit: That's the word. Next time your vacuum gets stuck, go easy on it. It's carrying a very old name.