Duirt has a multitude of different languages, and Novus Utum does not follow the regular Core Rulebook languages.

Your base languages, as well as bonus languages, are determined by your Culture. Any languages gained from your intelligence modifier MUST be chosen from the list of Bonus Languages on the Culture page. We do not allow exceptions to this, and you cannot reserve the slot for something else.

However, any points spent on the Linguistics skill can be used to learn languages from a wider set of choices. When picking languages from these points, you can choose a basic language or an advanced language.

You cannot learn secret languages like Druidic - these have special requirements that must be met to learn them (such as being a Druid for Druidic)