Robotics 4 November 2026 4 MIN READ
Where the Word 'Robot' Comes From
A brother's suggestion, a Czech word for forced labour and a 1920 play about artificial workers who were not made of metal at all.
THE SHORT ANSWER
The word "robot" comes from Karel Čapek's 1920 play R.U.R. He credited his brother Josef with suggesting it, from the Czech "robota", forced labour. Čapek's robots were not metal machines but artificial beings of chemical and biological origin, close to what we now call androids.
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A word that needed a name
In 1920 the Czech writer Karel Čapek had an idea for a play about artificial workers, but he did not know what to call them. By his own account, published in the newspaper Lidové noviny on 24 December 1933, he was stuck for a word. He had considered “laboři”, but found it too bookish. He told his brother Josef, a painter, who was working at his easel. Josef answered with a brush in his mouth: call them “roboti”.
So the word was Josef’s, and Karel is the one who put it on the stage. This is a single first-hand account written about thirteen years after the event, but the Czech Foreign Ministry tells the story the same way, and so does the Encyclopedia of Science Fiction. A claim that Josef had already used “robot” in a 1917 story is disputed by the Čapek Brothers Society, which says the story uses “automat”.
What the word means
“Robot” comes from the Czech “robota”, which the Encyclopedia of Science Fiction translates as statute or serf labour: work owed to a lord. The deeper Slavic root, “rab”, means slave. “Robot equals slave” is a popular shortcut, but the Czech word itself is about forced labour.
They were not machines
The play is called R.U.R., for Rossum’s Universal Robots. Čapek’s robots were not metal. After the premiere he wrote in the London Saturday Review that Rossum wished to create an artificial man “in the chemical and biological, not mechanical sense”. Inside the play, the creation is described as protoplasm that behaves like living matter. The Encyclopedia of Science Fiction says they are artificial humans of organic origin. In today’s terms they are closer to androids, or to synthetic biology, than to a factory arm.
Premiere, and a small date puzzle
The play was finished at the end of 1920, and the first book edition carries that year, although copies were held back until the theatre premiere. The date normally given for the premiere is 25 January 1921 at the National Theatre in Prague, which staged it until 25 December 1927 in 63 performances, according to the theatre’s own archive. Two sources, the Czech Foreign Ministry and the Slovak newspaper Denník N, say an amateur company in Hradec Králové performed it first, on 2 January 1921. Denník N adds that the Prague date had slipped and that the Hradec Králové theatre kept the original date, allegedly because it never got the letter about the change. Which of the two counts as “the premiere” depends on whether you count amateur theatres.
The play was an instant international success and was translated into more than thirty languages soon after its publication. The English translation appeared in 1923.
Then came the Three Laws
The science-fiction writer Isaac Asimov later took the word and gave it rules. The Encyclopedia of Science Fiction dates the formal statement of the Three Laws of Robotics to his story “Runaround”, published in Astounding in March 1942, adding that the First Law alone appeared earlier, and that the Zeroth Law came decades later, in Robots and Empire in 1985.
Asimov is also credited with the word “robotics”, for the science of robot design. The Encyclopedia of Science Fiction traces it to his story “Liar!”, from May 1941. Asimov remembered the first use differently, and we could not check his own account, so treat the exact first use as unsettled.
Why it matters
The word came from a play about workers, forced labour and what we owe to the things we build to do our work. A century later the debate has barely moved, and it started before the first robot existed.
Our take: the story that coined the word is about labour. Čapek chose a word for serf work on purpose, and he used it for beings who were made, not built.
Do you agree?
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Sources
- R.U.R.: “Inventing Roboti” (Karel Čapek & Josef Čapek) · Blackbird (Virginia Commonwealth University), vol. 21 no. 2 · Accessed
- ROBOT - the most famous Czech word celebrates 100 years · Embassy of the Czech Republic in Ottawa (Czech Ministry of Foreign Affairs) · Accessed
- The Czech Play That Gave Us the Word ‘Robot’ · The MIT Press Reader (John Jordan, Penn State) · Accessed
- SFE: Čapek, Karel · The Encyclopedia of Science Fiction (Gollancz / SFE Ltd.) · Accessed
- Prvý robot sa narodil pred sto rokmi v Prahe · Denník N · Accessed
- R.U.R. (Rossum's Universal Robots) (Činohra) - Archiv ND · Národní divadlo (National Theatre, Prague) archive · Accessed
- SFE: Robotics · The Encyclopedia of Science Fiction (Gollancz / SFE Ltd.) · Accessed
- SFE: Laws of Robotics · The Encyclopedia of Science Fiction (Gollancz / SFE Ltd.) · Accessed
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