'astrogator' originates from English, specifically formed as a blend of the prefix 'astro-' (from Greek 'astron') and the English word 'navigator', where 'astron' meant 'star' and 'navigator' meant 'one who directs the course of a ship or vehicle'.

'astrogator' was coined in 20th-century English as a shortening/blend of 'astro-navigator' and gained use particularly in science fiction and technical contexts to name a person who performs astronavigation.

Initially, it meant 'a navigator who uses the stars' and has largely retained that specific meaning, especially in fictional and technical usage.