pláinéd Definitions (by source) Show all An Teagasg Críosdaidhe planet; ai. –néid 363; ti. -nédaibh 607. An Teagasg Críosdaidhe. Author: Bonabhentura Ó hEodhasa, O.F.M.. Editor: Fearghal Mac Raghnaill, O.F.M.