-san Definitions (by source) Show all Trí Bior-Ghaoithe an Bháis: The Three Shafts of Death emph. pron. m., 3 sg. 284;--pl. 4945 Trí Bior-Ghaoithe an Bháis: The Three Shafts of Death. Author: Geoffrey Keating. Editor: Osborn Bergin.