Mac Ádaim, Mac Adaim
Mac ÁDAIM, Mac ADAIM—V—MacAdam, MacCadam, MacCaddam, MacAdams, Adams, [Adamson]; 'son of Adam' (one of the commonest names among the early Anglo-Norman settlers in Ireland); an Irish patronymic surname assumed by the Barrys of Rathcormac and Ballynagloch, Co. Cork, and other early Anglo-Norman settlers.
Alphabetical Index to Irish Surnames