The languages of Eirethune have changed over time, but are derived from the languages of the two ancient species of the world, the Madur & the Khalid-Ka. Those ancient languages are only known by scholars or perhaps some lost clan somewhere in the far expanses of the world, but those ancient languages are the roots for all of the modern languages used by the people of Eirethune.
There is no single Common tongue in Eirethune. However, there are regional common tongues which become useful when trying to communicate. The Language Chart below shows the inter-relationships between the various tongues and what commonly happens is that a language root slightly left of a given end-node language is used as a common tongue. For instance, in Bavarin, Angleside, Southland and in south western Elven communities, Anaris is often used as a Common Tongue because it's pretty close to several other languages. Traders in those areas will often specialize in Anaris because it will come in handy dealing with the people of the region, whether those people understand pure, direct Anaris or not.
That being said, for trading in particular, there is a simple, more physical sign language which is used pretty much everywhere in Eirethune. The trade sign language does not have any lyricism, but you can easily convey emotion with a particular request or response through the abruptness or smoothness of the execution of a particular sign. Most people in Eirethune are taught basic knowledge of the trade sign language, just in case they need something from someone while on the road.
The following chart shows the languages and their relationships, both with their parent tongues and sibling tongues. Accompanying the languages are the list of locations where a reasonable concentration of people exist who actually speak, read and write that language.
The numbers at the top of columns offer the relative difficulty in understanding languages in the various trees. The points (e.g.; +11, +9, +7, +5) are levels of difficulty (based 20) for understanding a language in a different grid square or different part of the tree. These difficulty points are added when you move horizontally or vertically.
For instance, Saris Isar, Cith Isar and Mithe Isar are very close. If a person speaks one of them, the difficulty to understand of the others is +5.
If someone that understood one of those languages, for example Cith Isar, wanted to read an old text written in Anaris, the difficulty modifier would be +7.
If that same person who spoke Cith Isar wanted to speak with someone who knew Toarus (which is only related to Anaris), the difficulty would be +7 greater (or +14 total).
If that same Cith Isar speaker wanted to speak with someone who was a speaker of Ar Sylagh, the difficulty assessed would be +7 (to Anaris) +9 (to Ptasaris) +9 (to Connagh) +7 (to Cyr Mahr) and +5 (to Ar Sylagh) for a total of +37, a very difficult attempt in comparison. This is because Ar Sylagh and Cith Isar are not very similar. They have some similar historical constructs and sounds, but ultimately, they have little in common.
Knowledge and study of the ancient languages can assist in understanding child languages to a certain extent, although still, it will be difficulty to under colloquial modern languages just from studying the ancient tomes.
|Mithe Isar||Elves of the South West|
|Toarus||Southland, Gnomes & Halflings of the South West|
|Lireann Se||Elves of the North West|
|Jadroar||Gnomes & Halflings to the East|
|An Nun||Kharin Dun, Kazden Dun|
|Shaken Nun||South Western Dwarven|
|Adjur Dagh||North Eastern Dwarven|
|Gagged Baar||Giant Tongues in Frostmark, Rhorden & Icereach|
|Abbadorin Faz||Vendratti Cult Tongues|
|Ainu Kiro||Dark Elves of the North|
|Ainu Chang||Dark Elves of the South West|
|Ang Thadesh||Eastern Elven Tongues|
|Ur Speak||Ur Lords|
|Dzaerent||Dark Elves of the East|
|Balladda||South Eastern Dwarven|
|Gwr-Ffadwr||South Western Orcish|
|Fang-Homar||South Eastern Orcish|