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Meaning & History
This Irish surname is of Gaelic language origin. The surname derives from the original Gaelic 'O'Leathlobhair' meaning 'descendant of leathlobhair'. Leathlobhair derives from 'Leath' meaning 'Half' and 'Lobhar' meaning 'leper'.
As a Scottish surname it is most likely a variation of 'Lauder', from the place so-called in Berwickshire. This place name is almost certainly of Cumbric origin.