Mahāvyutpatti

An early 9th-century ce Tibetan dictionary of Sanskrit Buddhist terminology containing 9,565 lexical items arranged thematically into 277 chapters. The work was devised partly as a means of standardizing translations from Sanskrit into Tibetan. Later versions of this text were produced in the 17th century with Chinese, Mongolian, and Manchurian equivalents added.

A Dictionary of Buddhism, Oxford University Press, 2003, 2004 (which is available in electronic version from answer.com)