The phrase "Black Panther" is the common phrasing of the title that is conferred upon the ruler of Wakanda, along with their position as a warrior and protector of their people. However, as far as I've seen in the MCU films and some assorted comics, I don't recall ever seeing this title and position described in anything other than English.
Presumably Wakandans do not universally use the English phrase "Black Panther", since they don't speak English all of the time, and the title seems to date back to before Wakanda was substantially influenced by the rest of the world.
So what is the Wakandan term? Is it literally just a word for "black" plus a word for a leopard or other big cat which has a melanistic variant? Or is it some other word or phrase? Answers from either the comics or MCU would be appreciated, or both if there's any distinction between them.