We've all heard ultimatum numerous times. As the word seems to be Latin, I just tried to look it up in
an online Latin-to-English dictionary, only to find out that it's either not in that particular dictionary for some reason or pseudo-Latin. If it's—indeed—pseudo-Latin, what's its translation?
It's not in that dictionary since it entered English language in the 18th century, from Medieval Latin:
ultimatum (n.)
"final demand," 1731, from Modern Latin, from Medieval Latin ultimatum "a final statement," noun use of Latin adjective ultimatum "last possible, final," neuter of ultimatus (see
ultimate). The Latin plural ultimata was used by the Romans as a noun, "what is farthest or most remote; the last, the end." In slang c. 1820s, ultimatum was used for "the buttocks."
"final demand," 1731, from Modern Latin, from Medieval Latin ultimatum "a final… See origin and meaning of ultimatum.
www.etymonline.com