Origin: Latin suffix -al
Extraterrestrial has 4 different meanings across 2 categories:
a form of life assumed to exist outside the Earth or its atmosphere
A being originating from outside of the Earth's atmosphere, from space, or from another planet; an alien
originating or located or occurring outside Earth or its atmosphere
"is there extraterrestrial life?"
Originating from outside of the Earth's atmosphere, from space, or from another planet; alien to Earth or its environment.