McGeachie (mag eacaro), MacGaugh (mag eacada), MacGeagh (mag eacada). McCaughan an Anglicized form of the Old Gaelic MacEachain, son of Eachain. An Ulster surname, recorded in the Counties of Antrim, Down, Londonderry and Tyrone. Some families of Mc Caughen changed their name to MacCaughey, itself an Anglicized form of the Ulster name Mac Eachaidh, son of the Horseman or Horse Lord. The Scots names MacGeachie and MacGeachy are also derived from Mag Eochaidh. McGachy, McGeachy. An anglicized version of the Gaelic 'Mac Eochaidh'. A surname in both Ulster and Scotland. William McGaheye settled in York, Virginia, in 1653, and Alexander McGeachy,
Scottish Gaelic name MacKonochie, MacOnachie, MacOnechy, MacOnochie, Donohue" or "Donohoe" (ignoring the Mac/Mc variation). Note that Scottish Gaelic does not put a space between the and the second element, whereas in Irish, there is a space: Nicknames (, ) in Gaelic operate similarly to those in other languages and usually indicate a physical characteristic, an occupation, a location or an incident the person is associated and so forth. Some examples Due to the relative paucity of names and surnames in Gaelic, the official name of a person (i.e. first name plus a surname, in Gaelic or English) is rarely used in Gaelic speaking