ultima ratio regum

[ ool-ti-mah rah-tee-oh rey-goom; English uhl-tuh-muh-rey-shee-oh ree-guhm ]

Latin.
  1. the final argument of kings (a resort to arms): motto engraved on the cannon of Louis XIV.

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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

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