Excalibur

noun

Ex·cal·i·bur ek-ˈska-lə-bər

: 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

See more words from the same century

Browse Nearby Words

excalcarate

Excalibur

excamb

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Cite this Entry

Style

“Excalibur.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Excalibur. Accessed 22 May. 2025.

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Kids Definition

Excalibur

noun

Ex·cal·i·bur ek-ˈskal-ə-bər

: King Arthur's sword

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