pinnteóireachd Definitions (by source) Show all An Teagasg Críosdaidhe painting, 1887, -echd 1803; gu. -a 1810. An Teagasg Críosdaidhe. Author: Bonabhentura Ó hEodhasa, O.F.M.. Editor: Fearghal Mac Raghnaill, O.F.M.