Elamite language
A sizeable number of Elamite lexemes are known from the trilingual Behistun inscription and numerous other bilingual or trilingual inscriptions of the Achaemenid Empire, in which Elamite was written using Elamite cuneiform (circa 400 BCE), which is fully deciphered. An important dictionary of the Elamite language, the "Elamisches Wörterbuch" was published in 1987 by W. Hinz and H. Koch. The Linear Elamite script however, one of the scripts used to write the Elamite language circa 2000 BC, has remained elusive until recently.