Thetis

noun

The·​tis ˈthē-təs How to pronounce Thetis (audio)
: a sea goddess who marries Peleus and becomes the mother of Achilles

Examples of Thetis in a Sentence

Recent Examples on the Web
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The river Thetis used wasn’t magic. Nick Lichtenberg, Fortune, 26 May 2026 The nine men and four women were taken aboard the Coast Guard Cutter Thetis on Tuesday afternoon, some 26 miles southeast of Key West, the agency said in a news release. orlandosentinel.com, 7 July 2021

Word History

Etymology

Latin, from Greek

First Known Use

14th century, in the meaning defined above

Time Traveler
The first known use of Thetis was in the 14th century

Cite this Entry

“Thetis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Thetis. Accessed 3 Jul. 2026.

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