seicréideach
Definitions (by source)
“misticall” 50.10
Aibidil Gaoidheilge & Caiticiosma: Seaán Ó Cearnaigh's Irish primer of religion, published in 1571. Editor: Brian Ó Cuív.
secret, 3351, 6745, sé-, 5769, sec-, 2029.
Scáthán Shacramuinte na hAithridhe. Editor: Cainneach Ó Maonaigh O.F.M.