Earthling definitions

ûrth'lĭng
One, especially a human, that inhabits the planet Earth.
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A person devoted to the world; a worldling.
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A worldly person.
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An inhabitant of the planet Earth (Generally in science fiction aliens who use the term Earthling look down on the people of earth.)
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A person who lives on earth; human being.
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Origin of earthling

From Middle English *erthling, from Old English eorþling, yrþling (“husbandman, farmer, ploughman”, literally “one of the earth”), equivalent to earth +‎ -ling and/or Earth +‎ -ling. Cognate with German Erdling (“Earthing”).