Excalibur

noun

Ex·​cal·​i·​bur ek-ˈska-lə-bər How to pronounce Excalibur (audio)
: the sword of King Arthur

Word History

Etymology

Middle English Excalaber, from Anglo-French Escalibor, from Medieval Latin Caliburnus

First Known Use

15th century, in the meaning defined above

Time Traveler
The first known use of Excalibur was in the 15th century

Rhymes for Excalibur

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Browse Nearby Words

excalcarate
Excalibur
excamb
See all Nearby Words

Cite this Entry

“Excalibur.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Excalibur. Accessed 1 May. 2025.

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Kids Definition

Excalibur

noun
Ex·​cal·​i·​bur ek-ˈskal-ə-bər How to pronounce Excalibur (audio)
: King Arthur's sword

More from Merriam-Webster on Excalibur

Britannica.com: Encyclopedia article about Excalibur

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