buaic
Definitions (by source)
f. peak; as. 1464.
Duanaire Mhéig Uidhir: The poembook of Cú Chonnacht Mág Uidhir, Lord of Fermanagh 1566-1589. Editor: David Greene. Translator: David Greene.
f., top, pinnacle, summit, ar bhuaic a mheanman, ‘on top of, upon his mind,’ 349, 719
Trí Bior-Ghaoithe an Bháis: The Three Shafts of Death. Editor: Osborn Bergin.