: a constellation between Cygnus and the north pole

Word History

Etymology

Latin (genitive Cephei), from Greek Kēpheus

First Known Use

1563, in the meaning defined above

Time Traveler
The first known use of Cepheus was in 1563

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Cite this Entry

“Cepheus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Cepheus. Accessed 7 Jul. 2026.

Kids Definition

: a group of stars between Cygnus and the north pole

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