Possible Clues:

• In a manner of speaking, hasn't been heard in Rome for a long time and past one's prime in South America
• Publius Vergilius Maro, for instance, hasn't been heard in Rome for a long time
• I don't get upset with all language that's well out of date
• Scipio's speech? When abbreviated, there's nothing left
• Ancient Roman language
• Source of many English words that come to us via French
• It¿s not new, the French can say it in ancient Rome
• Language of daughter not all one's upset about
• Cato the Elder's language
• Language of early inscriptions