Two fun facts I discovered whilst researching this one: 1. Kelish (the language) has nothing to do with the Kellids (the people). Despite the similar spellings and pronunciations, the two are unrelated. 2. Osiriani is also officially considered an uncommon language, but in this instance I disagree. It is the most widely spoken language in Garund, doubtless preferred by many in the southern Inner Sea to Taldane, and must have at least as many speakers as, say, Halfling. I think GMs wouldn’t go astray by making it Common.
The Mwangi Expanse has a trade-tongue called Polyglot (or sometimes just "Mwangi"). It is a fusion of dozens of the dialects and local languages of the people who live there. It did not make the list because of its unique status as a trading language not typically used outside a commercial context. Well worth considering though for a budding Mwangi trader!
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