Kayvan
Kayvan (also spelled Kayvon, Kaivon, Keivan, Kaywan, Kavon, Kevan, or Kaevon; Persian: کیوان) is a Persian masculine given name denoting the planet Saturn. It is related to the word for Saturn in several old languages, including Kaimanu in Sumerian, Kajamānu in Akkadian, Kewwān in Syriac, and "Kewan" (kywʾn') in Middle Persian. That a 16th-century high priest of Stakhr was named Azar Kayvan suggests that "Kayvan" was used as a name for a person in Iran as early as that time, particularly among followers of Zoroastrianism. To date "Kayvan" is a popular name among families following Zoroastrianism. Kayvan is distinct from the similar Persian word Kayhan, meaning "universe", also used as a masculine given name. To English speakers, the spelling Kayvon is closest to the Persian pronunciation, [keivɒːn].
"Saturday", the day of Saturn, finds its Classical Persian equivalent in "Keyvānshid".