earther

/ˈɜːθ.ə/

Etymology

From earth + -er.

earther means A person from planet Earth. Lexicurio rates it Sui generis — a strength score of 89 out of 100.

earther is pronounced /ˈɜːθ.ə/.

noun

A person from planet Earth.“Like Haiti, the Belt is dominated by a wealthy class of colonizers (in this case, Earthers who speak English). […] Some characters speak pure Belter, but most speak about half-English, half-Belter, adjusting their vocabulary for each situation. If they’re holding a separatist rally to protest Earther rule, Belter is the order of the day. If they’re trying to talk to a boss, English makes more sens”
A supporter of a particular theory about the Earth.