aicheapt
Definitions (by source)
‘instruction’, ‘precept’; dat. pl. aícheapduibh, 10.7. For -ch- see Desiderius, Glossary
Aibidil Gaoidheilge & Caiticiosma: Seaán Ó Cearnaigh's Irish primer of religion, published in 1571. Editor: Brian Ó Cuív.