What is "enveri"

Enveri (d. 1512?) was a 15th-century Ottoman poet and historian. He wrote a famous Ottoman history in the Ottoman Turkish language named Dusturname, the Constitutional Book (for Ottoman History). His work consists of 3730 verses and is based on three parts: the first is a universal Islamic history, the second, which he is famous for, about the Aydinids, and the third (842 verses) about the Ottomans. Not much is known about his personal life.