Modern Persian form of Avestan Yima Kshaeta, which meant “shining Jam”. This was the name of a mythological king of Persia. He is known as either Jamshid or Jam, where Jamshid is a combination of his original name and an honourific.
People with the name Trever have a deep inner desire to use their abilities in leadership, and to have personal independence. They would rather focus on large, important issues, and delegate the details.