Latin language

Latin was an ancient Human language, the original language of the Romans.

Many Earth proverbs were in Latin and were often used as mottos of starships or installations. A course based on this language was taught at Starfleet Academy. 

When Wesley Crusher was on leave from Starfleet Academy, Captain Jean-Luc Picard checked on his Latin by asking him:


 * "Quomodo tua Latinitas est?" ("How is your Latin?")

Wesley responded:


 * "Praestat quam prius." ("It's better than before.")

whereupon the Captain responded:


 * "Oppido bonum." (Mistranslation of, "Very good.")

The term arboretum was derived from the Latin word for tree, arbor. This connection was noted by the Cairn Hedril in 2370. 

Q remembered Vash was called persona non grata on Betazed. 

The holographic Henry Burleigh advised his governess Lucille Davenport, played by Captain Kathryn Janeway: "In ullam rem ne properemus", ("Let's not rush into anything") and asked her whether her Latin was a little rusty when the Captain didn't understand his remark. Janeway admitted that her Latin was indeed a little rusty. 

Background information
Several episode titles derive from Latin phrases including:
 * - "Under the rose", an expression meaning "secretly".
 * - "The persons of the drama".
 * - literally "Amongst arms the laws become mute", but translated by Bashir as "In times of war, the law falls silent"
 * - "After the fact"
 * - "It does not follow"
 * - "Other self"
 * - "New Earth"
 * - "Lone Voice"
 * - "New Earth"
 * - "Lone Voice"
 * - "Lone Voice"