brathaim, braithim Definitions (by source) Show all Poems on the O'Reillys I spy out, betray, perceive, expect. v.n. brath, 601, 1287, etc. ag brath, expecting, hoping for, 1306; do bhaoi ar brath, who was hoped for, 1519; pres. pass. braittear, 1201 Poems on the O'Reillys. Editor: James Carney. Trí Bior-Ghaoithe an Bháis: The Three Shafts of Death I spy, perceive, 183 Trí Bior-Ghaoithe an Bháis: The Three Shafts of Death. Author: Geoffrey Keating. Editor: Osborn Bergin.