Aye, Ey, Eye, Surnames

Aye
German and Dutch: patronymic from a short form of a Germanic (Frisian) personal name with agi ‘sword’ as its first element.
Scottish: from a shortened form of the Gaelic personal name Adhamh ‘Adam’.
Dictionary of American Family Names, Oxford University Press, ISBN 0-19-508137-4

Ey
German and Dutch: variant of Aye.
variant of English: a variant spelling of Eye.
Dictionary of American Family Names, Oxford University Press, ISBN 0-19-508137-4

Eye
English: habitational name from places in Cambridge, Hereford, and Suffolk named from Old English eg, a term denoting low-lying land, an island or promontory, or an area of dry land in a marsh.
Dictionary of American Family Names, Oxford University Press, ISBN 0-19-508137-4