fé fiadh
Definitions (by source)
(magic) mist which hides objects from view, 3829. [fégh fia (with fé fia noted as incorrect), IGT, p. 127 and exx. 1674, -75, -81. fé fia, DG, p. 58, 81. Other reff. TD, 11, 245.]
Desiderius, otherwise called Sgáthán an Chrábhaidh. Editor: Thomas F. O’Rahilly.