A male name. this common Scottish name is identical with the Irish Aengus, Aonghus, ‘one choice’. It was the name of a 9th-C saint, Bishop of Clonenagh, as well as of a legendary hero. See also Aeneas.

Originally Anguss, it was popular in Ireland and then, by migration, in Scotland, where it is ‘especially at home’; there, however, it is often ‘translated into Æneas, the christened name of many a Scot who ought to be Angus; and the Irish are too apt to change it in the same way’. ‘It comes from the numeral aon, one; it also conveys the sense of pre-eminence, means excellent strength, and it is generally pronounced Haoonish in Gaelic.’ In Scotland it was, in the old days, often changed to ‘Hungus and Ungus, likewise Enos’. (Yonge.) Angus, Andrew, Donald, and Ian are perhaps the most popular of Scottish m. Christian names.

The English form of Aonghas.

Celtic (masculine) from ango - Undeviating.

A Latin name, meaning: Narrow.

A Gaelic name: Aonghas, Irish Aonghus, g. Aonghusa, Early Irish 'Oengus, Old Irish 'Oingus, Welsh, Cornish Ungust: Oino-gustu-s, “unique choice,” from aon and gus, choice (Eng. choose, Latin gustus, taste, as in Gaelic tagh). Hence M‘Aonghuis, Mac-innes; further M‘Ainsh.