ultimatum/ˌʌl.tɪˈmeɪ.təm/EtymologyFrom Latin ultimatus (“late, last final”), from Latin ultimus (“extreme, last, furthest, farthest, final”).nounA final statement of terms or conditions made by one party to another, especially one that expresses a threat of reprisal or war if the terms are not met before some specified date and time.“. . . But he was directed to present a memorial, urging many reasons for the restitution of the captures made before the war, to represent in its full force, the benefit that would arise, both to France and England, from the total desertion of the war in Germany, and if England should refuse the conditions, now offered as an ultimatum, to wait for farther instructions. The ultimatum arrived in Lon”An intended final statement of terms or conditions made by one party to another in a negotiation.“1724 William Wynne: The Life of Sir Leoline Jenkins, Judge of the High-Court of Admiralty . . . Thirdly, That they, the Dutch, 5 or 6 Weeks after they had received these Letters, (of 12th of July) call'd for an Ultimatum, so they termed the dernier mot, from us; and that we gave our Ultimatum to the Mediators first by Word of Mouth in August, then on the 5th of September, N. S. in writing.”