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Astronaut

/ˈæstrənɔt/noun

A person trained to travel in a spacecraft.

The Greek roots

ἄστρον
ástron
star
+
ναύτης
naútēs
sailor

Literally: star sailor

The story of the word

The compound is modelled on Argonaut, the crew who sailed the Argo, and it turned up in fiction long before anyone flew: Percy Greg named his spaceship the Astronaut in an 1880 novel. NASA adopted the word as a job title in 1958. The Soviet cosmonaut is built the same way on κόσμος, so one of them sails the stars and the other sails the whole universe.

How it travelled
Ancient Greek → scientific coinage → English
First recorded
1920s

The same roots elsewhere

Other languages reached for exactly the same Greek pieces.

Same family

astronomycosmonautargonautnauticalastrology

In a sentence

Every astronaut in that photograph had been a test pilot first.

She wanted to be an astronaut until she found out about the centrifuge.

Built on the same root

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