Definition: The name "Fernando Tatis Jr." is a fictional person in the movie "Interstellar," but not actually an actual person. The term "Fernando" can be a play on the Latin phrase "furna" meaning "wooden floor" or "wood". The person's real name is not specified, so it could either be Tatis Jr., a fictional character, or another name. It's possible that this particular person has a family member named Tatis Jr. In any case, the word "fernando" isn't actually a proper noun in English. It’s used to denote someone who lives or works on a farm in rural America, but it is not commonly used as a proper term.