Anghus

From Middle Irish Aengus, Oengus, from Old Irish Oíngus, from oín (“one”), from Proto-Celtic *oinos, from Proto-Indo-European *óynos (“single, one”). The etymology of the second element is disputed; most likely it is Old Irish gus (“strength, vigour”), from Proto-Celtic *gustu-, or it may be from Proto-Celtic *gus- (“choose”).

Anghus m

1. a male given name from Old Irish, equivalent to English Angus

• G. Toner, M. Ní Mhaonaigh, S. Arbuthnot, D. Wodtko, M.-L. Theuerkauf, editors (2019), “Oengus”, in eDIL: Electronic Dictionary of the Irish Language