Merriam-Webster Collegiate Dictionary - tocharian

 also Tokharian  noun  Etymology: Greek Tocharoi  Date: 1926  1.  a. a language of central Asia known from documents from the sixth to eighth centuries A.D.  b. a branch of the Indo-European language family containing ~ — see Indo-European languages table  2. a member of a people of presumably Indo-European speech dwelling in central Asia during the first millennium of the Christian era