naomhain Definitions (by source) Show all An Teagasg Críosdaidhe I bless, sanctify, 1084; ainm br. naomhadh 1111, 1238. An Teagasg Críosdaidhe. Author: Bonabhentura Ó hEodhasa, O.F.M.. Editor: Fearghal Mac Raghnaill, O.F.M.