I wrote a several short articles for Westhammer.
RIEKSPIEL
Riekspiel is the original language of the
Empire of Man and the Old World that Was during the World that Was].Riekspiel is official language in New Kislev, the unofficial language in United States of Hammerica, and is also spoken in East Landlockia and West Landlockia, though with very distinct accents.
Many, but far from all people in the West, make it a point to Learn Riekspiel. By an astonishing coincidence, Riekspiel sounds very similar to American English with old western slang.
ESTALIAN
Estlian is official language of the humans of Estalia and the various Estalian colonies south of the United States of Hammerica.Because the Wild West is where Estalian culture meets, New Kislevite culture, many humans and non-humans alike learn the language.
By an astonishing coincidence, Estalian sounds very similar to real world Spanish with a bit of old Western slang mixed in.
BRETTONIAN
Brettonian is the native language of Brettonia, and Brettonian colonies such as Cebeque.
Relatively few non-Brettonians in the Wild West learn Brettonians and most Brettonians that make it West. Though technically, not in the west, Cebeque is a valid narrative setting in Westhammer. Cebeque is still west of the Old World.
By an astonishing coincidence, Brettonian spoken in the Westhammer is near identical to real world Québécois French with a bit of Wild West slang thrown in.
KHAZALID
Khazalid is the native language of dwarves. Both in the West and the Old World, most dwarves learn one or more human languages, but they still teach their own tongue to their children first and foremost.
Khazalid is not exactly a secret language
per se but very few non-dwarves bother to learn it and dwarves are not especially eager to teach other races their languages without sufficient incentive.
Khazalid is vaguely similar to real world Old Norse.
SAURIAN
Saurian is the language of the
Rangos, more or less unchanged from the language of the ancient Lizardmen in the
World that Was.
Saurian is vaguely inspired by real world Mesoamerican languages but with a bestial twist. It is somewhat difficult for humans to pronounce correct.
Very few non-Rangos bother to learn Saurian. Very few Rangos are willing to teach Milk drinkers their language. Nevertheless a few swear words and insults have cropped into the vernacular of mammals in the West.
TILEAN
Tilean is the language spoken by old Tilea and new Tilea.
Tilea never managed to establish any significant colonies in the New World, but many Tilean immigrants have chosen to immigrate to the New Kislevite and Estalian colonies of the New World.
In the West, most ethnic Tileans speak Riekspiel. Unless you are a fan of spaghetti Westerns, in which case
everyone speaks Tilean instead of Riekspiel.
Tilean spoken in the West is near identical to real world Italian with a bit of Western slang mixed in.
I'm sure we stick a few more languages in. At the moment I don't see a large reason to give greenskins or skaven their own language just for the sake of simplicity it's easier to say that these groups assimilated human tongues. That is my opinion at least.
PS: Did you notice I named my allegory for Quebec, "Cebeque", hold your applause, don't let my creativity shock you too much.