Transferred use of the surname, in origin a local name from the numerous places so called, a large number of which get their name from Old English mylentūn ‘settlement with a mill’. Others were originally named as ‘the middle settlement (of three)’, from Old English middel ‘middle’ + tūn ‘settlement’. The surname is most famous as that of the poet John Milton (1608–74), and the given name is sometimes bestowed in his honour. Its most illustrious bearer in recent times has been the economist Milton Friedman (1912–2006).
English and Irish: nickname for a courageous, arrogant, or foolhardy person, or one quickly moved to anger, from Middle English modie ‘impetuous’, ‘haughty’, ‘angry’ (Old English mōdig ‘brave’, ‘proud’, from mōd ‘spirit’, ‘mind’, ‘courage’). This English name has been established in Ireland since the late 13th century.