regnum

noun

reg·num ˈreg-nəm

plural regna ˈreg-nə

: kingdom

Word History

Etymology

Latin

First Known Use

circa 1890, in the meaning defined above

Time Traveler

The first known use of regnum was circa 1890

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Cite this Entry

Style

“Regnum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/regnum. Accessed 5 Dec. 2025.

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