earthian

listen to the pronunciation of earthian
İngilizce - İngilizce
A language from Earth

I thought the females spoke Earthian to you. Improving their Earthian was why they asked for a couple.

Of or from the planet Earth

Nowadays speakers on Twin Earth are well aware (thanks to chemistry) that their word 'water' does not refer to the Earthian stuff.

A person from planet Earth

I most likely will be the second Earthian to reach that planet. .

earthian