Bizhan

Later form of Vezhan, of which the meaning is uncertain. It may possibly be etymologically related to the New Persian verb بختن (bextan), which can mean "to sift" as well as "to sieve". The Middle Persian (i.e. older) equivalent of that verb is wēxtan meaning "to sift, to select, to choose, to separate" and is ultimately derived from Old Iranian waik- or waič- meaning "to separate". It should be noted that in Middle Persian, there is another verb wēxtan, but that one has a different meaning and slightly different etymology than the aforementioned verb whose meaning and origin I just explained. This second verb wēxtan means "to swing, to brandish, to throw" and is ultimately derived from Old Iranian waig-. Due to the fact that these verbs and their Old Iranian roots resemble each other very closely, both are an equal candidate for being the root of the given name Bizhan.