Still working on it (there's a whole other language family that's relatively disconnnected from these, but still exists in the same world, and the Elven languages still don't have dates tabbed yet, though they are broadly similar to some of the dwarven ones).
A relationship tree of the languages of the western and southern parts of the continent of Ovaicaea (a fantasy setting my wife created and I've helped her develop-- you've probably seen some maps of it in the Map Thread). Black lines indicate direct descent, dashed black lines indicate broken or fragmentary descent, and red lines indicate significant exterior influence from one language (family) to another. For instance, due to the dominant influence of High Elves in matters of law and literature, the Soltran tongue (old, vulgar, and otherwise) has exerted a pervasive influence of many other languages near and far.
Each language is also denoted with an OTL language that it would be transcribed with in "translation convention" for the sake of any readers. Like, elven in all likelihood isn't
literally Medieval Italian, but sake of understanding it is
represented by Medieval Italian.
Also next to them are dates; BE = Before the Empire, IA = Imperial Age/imperialis anno. In Western Ovaicaea, this is the conventional dating pattern, anchoring things to the foundation of the first Empire of the West.
It was long conjectured that Elven and Gnomish languages, while related, arose independently of the Dwarven and Ucralic human languages, which were themselves distinct from the languages of Gestrin and Aendrilad. However, careful study has shown not just a relationship between the dwarven and all Aendro-Ucralic languages, it demonstrates a common root from which the Elven languages also sprang-- implying that the surviving Elven and Gnomish dialects emerged only after contact with humanity, and did not significantly precede them. Given that the Elves arose autochtonously from northern Ovaicaea, and the humans were late arrivals only 13,000 years ago, this has put to rest many Elven claims of cultural superiority. Riots occurred outside the offices of the Imperial Language Institute, but the science was clear: humanity had a transformative effect on the native peoples of Ovaicaea, perhaps much earlier than previously believed...