Origin of the name Maxwell: Transferred use of the Scottish surname originating from a place-name derived from the name Maccus (great) and the Old English wielle (spring, pool) or wella (stream). The name was indicative of one who dwelled at Maccus' spring or the stream of Maccus.
Maxy as a name for boys (also used as girls' name Maxy) is of Latin origin, and the meaning of the name Maxy is "greatest". Maxy is a variant form of Maximilian (Latin). Maxy is also a variation of Maximus (Latin): Roman family name derived from maximus.
