FOR
REAL: Though it is used on its own more often than not these days, Max began as a pet form of Maximilian or Maxwell. Maximilian comes from the Latin name Maximilianus, which is derived from Maximus, meaning "greatest." Maxwell is a Scottish surname coming from a place name meaning "Magnus's stream; brook."
diminutives: Maxy
related names: Maximilian, Maxwell, Maxine, Maxim, Maximo, Massimo