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English word astronaut comes from English -naut (Forms nouns meaning a voyager, farer, or tripper.), English astro-
-naut (English)
Forms nouns meaning a voyager, farer, or tripper.
astro- (English)
Celestial bodies: fixed stars, wandering stars (planets), etc.; astronomy.
astronaut (English)
(Hong Kong) A returnee who frequently flies back and forth between Hong Kong and his/her adopted home country.. A member of the crew of a spaceship or other spacecraft that travels beyond Earth's atmosphere, or someone trained to serve that purpose.. An American space traveler, when contrasted against equivalent terms from other countries such as cosmonaut and taikonaut.