Spanish
From Memory Alpha, the free Star Trek reference.
The term Spanish refers to anything originating from the Earth nation-state of Spain, including its people, as well as the Spanish language. Many people who live in North America, most notably Mexico, and South America are of Spanish descent.
In order to pass the time while en route to Risa in the type 15 shuttlepod Onizuka, Geordi La Forge listened to a piece of music played by a Spanish guitar. (TNG: "The Mind's Eye")
The Spanish are infamously known for the Spanish Inquisition. (Star Trek IV: The Voyage Home; DS9: "Q-Less")
