forbhais
Definitions (by source)
f., siege.
Stories from Keating's History of Ireland. Editor: Osborn Bergin.
f., act of besieging, 6650; cur i bhf. ré hucht, etc., 10814
Trí Bior-Ghaoithe an Bháis: The Three Shafts of Death. Editor: Osborn Bergin.