meirg Definitions (by source) Show all Trí Bior-Ghaoithe an Bháis: The Three Shafts of Death f., rust, 1814, 5248; gen. –e, 1858 Trí Bior-Ghaoithe an Bháis: The Three Shafts of Death. Author: Geoffrey Keating. Editor: Osborn Bergin.