Editing Wilderlands Hex Crawl IV

Common: This language is a mix of Viridian, Tharbrian, and Altanian. In this campaign, I'm perfectly fine with PCs speaking Common as a native tongue. Common also has its own alphabet.  

Viridian: Viridian is to Common as German is to English. Viridian is the major basis for the Common tongue; Viridian currently uses the Common alphabet and is in fact the basis for the Common Alphabet. Viridian is spoken in Viridistan, as well as by many merchants, due to Viridistan's long-standing history of being a center of commerce. Viridian is today's debased, quotidian version of High Viridian.

High Viridian: Spoken by Viridistan's nobles. If you speak Viridian, you can make yourself understood in High Viridian (and vice versa), but reading/writing Viridian doesn't grant literacy in High Viridian, as High Viridian is written in Infernal script.

Altanian: Spoken by the red-skinned natives of Barbarian Altanis, others residing on the Altanian Peninsula, and many common folk of the City-State region. Altanian lacks an alphabet, although one could spell it out phonetically in the Common alphabet.

Tharbrian: The language of the Tharbrian nomad-folk and their descendant. Originally it lacked a written form; today it is written using the Common script. The Tharbrians learned writing from the Viridians, hence the use of the Common alphabet.

Skandik: The language of the Skandik raiders and traders. It is written using the runic script of the Dwarves.  

Gishmesh: Spoken by the tribes of Tarantis, this is tongue is also used by the traders from Karak, who have adopted this tongue as the language they use when doing business in the Wilderlands. Gishmesh is written using the Common Alphabet.

Orichalan: Said to be based on the language of dragons. Written using the Draconic alphabet. Spoken mainly by the few survivors of the hated Dragon Empire.  

Ghinoran: Spoken by people descended from the Ghinoran Successor States of ancient Kelnore. This language uses it own script, Glyphis, save in the region of Chim, where folk write Ghinoran in the Dwarven alphabet. This language is not prevalent in Valon or in the Valley of the Ancients, but is widely spoken in many other regions of the Wilderlands.

Karakhan: This language is spoken by the people of Karak, who dwell to the east of the Wilderlands. The written form, using the Karakor script, is almost impossible for non-natives to master. Most traders from Karak will speak Gishmesh.  

Avalonian: This language is spoken in Valon proper, and is written using the Aquan script adopted from the merfok. The region in which this campaign starts is on the Valon map, but doesn't count as Valon proper; most natives don't speak Avalonian as a mother tongue, but may well know it for purposes of trade.