8 letters · 14 points in Scrabble
noun a person trained to travel in a spacecraft
originEtymology tree Latin spatiumbor. Old French espace Anglo-Norman spacebor. Middle English space English space Proto-Indo-European *mon- Proto-Germanic *mann- Proto-West Germanic *mann Old English mann Middle English man Middle English -man English -man English spaceman From space + -man.
Etymology from Wiktionary, CC BY-SA 3.0