Meaning and Origin of: McConaghy

Family name origins & meanings

  • Northern Irish : Anglicized form of Gaelic Mac Dhonnchaidh ‘son of Donnchadh’, a widely used personal name meaning ‘brown one or chief of battle’, from donn ‘brown-haired’ or ‘chief’ +cath ‘battle’, which is Anglicized as Donagh orDuncan. Derivatives in which the personal name is unlenited include Donahue and McDonough; these derive from the early genitive form, Donnchadha. Forms ending in -yderive from the later genitive, Donnchaidh.