deacrach
Definitions (by source)
adj. hard to please; asf. deacraigh 2078.
Duanaire Mhéig Uidhir: The poembook of Cú Chonnacht Mág Uidhir, Lord of Fermanagh 1566-1589. Editor: David Greene. Translator: David Greene.
hard, difficult, harsh. mana deacrach, harsh omen, 1513.
Poems on the O'Reillys. Editor: James Carney.