Theia

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Theia

  • /ˈθiːə/

Rhymes with -iːə

Where it comes from

Borrowed from Ancient Greek Θεία (Theía).

proper noun Thea · Thia

  1. Greek A Titan, the sister-wife of Hyperion.
  2. Greek An Oceanid nymph (daughter of Oceanus and Tethys), the mother of the Cercopes by Oceanus.
  3. A hypothesised Mars-sized planet of the early solar system thought to have collided with the Earth to produce the Moon. According to the reigning hypothesis, about 4.5 billion years ago, shortly after Earth had accreted down into a sphere from its little slub of circumsolar material, another newborn planet, still shaky on its feet, slammed obliquely into Earth with terrifying force. That "giant impactor", named Theia

Translations

Every language

name Titaness; sister and wife of Hyperion

한국어테이아
日本語テイアー Teiā
PortuguêsTeia
FrançaisThéia
ItalianoTeia
ΕλληνικάΘεία Theía
РусскийТейя Tejja

Talk about this word

Cite this
MLA

"Theia." Wiktionary, via Micwyn, micwyn.com/word/theia. Accessed 6 Nov. 2026.

APA

Theia. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/theia

Chicago

"Theia." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/theia.

BibTeX
@misc{theia_2026,
  title = {Theia},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/theia},
  urldate = {2026-11-06}
}