An Etymological Dictionary of Astronomy and Astrophysics

A person trained to pilot, navigate, or otherwise participate as a crew member of a spacecraft.

Etymology (EN): Astronaut, from Gk. → astro- “star” + nautes “sailor,” from naus “ship” (cognate with Mod.Pers. nâv “ship;” Av./O.Pers. *nāv-, O.Pers. nāviyā- “fleet;” Skt. nau-, nava- “ship, boat;” Gk. naus, neus, L. navis; PIE *nāu- “ship”).

Etymology (PE): Fazânavard, from Ar. fazâ “space” + navard agent noun from navardidan “to travel, walk, pass by and over.”

Keyhânnavard, from keyhân “cosmos” + navard.