Where does “vomit comet” come from?

vomit comet (English) comes from English comet, from Middle English comete, from Old French comete, from Latin cometes, from Ancient Greek κομήτης, from Ancient Greek κόμη, from Latin κομεω — to care for.

vomit comet (English): A reduced-gravity aircraft, an airplane that briefly provides a nearly weightless environment by flying on a parabolic flight path; used to train astronauts or conduct research

Definitions

  1. A reduced-gravity aircraft, an airplane that briefly provides a nearly weightless environment by flying on a parabolic flight path; used to train astronauts or conduct research

Ancestry of “vomit comet”, step by step

vomit comet traces back through two separate lines of ancestry.

via English comet

StepLanguageWordMeaning
1EnglishcometA celestial body consisting mainly of ice, dust...
2Middle Englishcometecomet
3Old Frenchcometecomet
4LatincometesA comet, meteor, shooting star; A portent of...
5Ancient Greekκομήτηςlong-haired; long-haired; comet; longhaired
6Ancient Greekκόμηhair of the head
7Latinκομεωto care for

via English vomit

StepLanguageWordMeaning
1EnglishvomitTo regurgitate or eject the contents of the...
2Middle Englishvomiten
3Latinvomitāre
4Latinvomōto be sick; to vomit, puke, throw up; discharge
5Proto-Indo-Europeanwemh₁-to spew, to vomit
Every word from Latin κομεω
vomit comet — Etymology, Origin & Word History | Etymology Explorer