bróin Definitions (by source) Show all An introduction to Irish syllabic poetry of the period 1200–1600, with selections, notes and glossary dat. sg. of bró a mass. An introduction to Irish syllabic poetry of the period 1200–1600, with selections, notes and glossary. Author: Eleanor Knott. Poems on the O'Reillys a host, a company, 1721-4 n. Poems on the O'Reillys. Editor: James Carney. Trí Bior-Ghaoithe an Bháis: The Three Shafts of Death f., company, 6684 Trí Bior-Ghaoithe an Bháis: The Three Shafts of Death. Author: Geoffrey Keating. Editor: Osborn Bergin.