extraterrestre
/eɡstɾateˈrestɾe/ · B1 · adj
extraterrestrial
👽🛸 extra + terrestre = outside + of the Earth (Latin terra = earth)
It's the English word extraterrestrial with a Spanish ending. Latin extra means outside and terra means earth, which also gives Spanish tierra. In speech the x sounds like gs: eg-stra-te-RRES-tre.