So I have been working on developing some of the languages of the various regions of the setting to work into my games. I feel like this would give a little flavor - instead of saying, "The ancient wizard says something in Thassilonian", as a GM I could actually say something in...Thassilonian, whatever that may sound like. So far, I've gotten as far as breaking down the runes into letters and/or sounds, based on some of the names and words I do know.
Do any of you have any languages you have developed? I am thinking of doing ancient Osirian and Varisian next. I would probably base these on the actual ancient Egyptian and Roma languages, changing some words and sounds slightly. Skald could be based on Old Norse, Tian languages on Chinese/Japanese/Korean and so on. For languages that do not have an "earth-equivalent" I would have to be more creative. For fantasy races, there are obvious starting points. But for monstrous races...has anyone ever developed a kobold language, for instance? What does the dark folk tongue sound like? Giant?
I don't think I want to develop an entire grammar and dictionary, but a few phrases would be useful. Are there existing resources, or should I just read up on linguistics and start developing my own? A languages of Golarion phrase book would be a great player companion or campaign setting book.
EDIT: I have found some useful inspiration when I searched some older threads, but I'd like to know if anyone else has some different ideas.