adharc Definitions (by source) Show all Trí Bior-Ghaoithe an Bháis: The Three Shafts of Death f., horn, 22; pl., -a, 6703, 7855 Trí Bior-Ghaoithe an Bháis: The Three Shafts of Death. Author: Geoffrey Keating. Editor: Osborn Bergin.