Dalish

Dalish was the language of the inhabitants of Dale. It derived from Rohirric and Westron. The Dwarves of Erebor spoke this language and many of their names (Ori, Nori...) were in fact Dalish, so as not reveal their true language, Khuzdul. It was similar to Rohirric, the language of Northmen and the language of certain Hobbits.