Tamang language
Tamang Devanagari: तामाङ; tāmāng is a term used to collectively refer to a dialect cluster spoken mainly in Nepal, Sikkim, West Bengal Darjeeling as well as North-Eastern India. It comprises Eastern Tamang, Northwestern Tamang, Southwestern Tamang, Eastern Gorkha Tamang, & Western Tamang. Lexical similarity between Eastern Tamang which is regarded as the most prominent and other Tamang languages varies between 81% to 63%. For comparison, lexical similarity between Spanish and Portuguese, is estimated at 89%.