Etymology

antichthon

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Today it means: A hypothetical Earth on the opposite side of the Sun. Full definition →

Ancient Greek ἀντίχθων
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The story

  1. Ancient Greek · learned borrowing fromἀντίχθων
  2. English todayantichthon

From Ancient Greek ἀντίχθων (antíkhthōn), from ἀντί (antí, “against, opposite”) + χθών (khthṓn, “Earth”).

Etymology from Wiktionary, CC BY-SA 4.0.