Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
AIRD
As described in historical dictionaries
Patronymica Britannica (1860)
AIRD. Defined as " any Isolated hei.Li,Iit of an abrupt or hummocky character, either on the coast or in the interior" of Scotland. Imp. Gaz. Scot. The word occurs in composition in many Scottish names of towns and parishes, as well as separately.
Surname type: Location or geographical feature
Origin: Celtic
Region of origin: British Isles
Country of origin: Scotland
Religion of origin: Christian
Language of origin: Gaelic