The Collaborative International Dictionary of English v.0.48:

Coranach \Cor"a*nach\, n. [Gael. coranach, or corranach, a
   crying, the Irish funeral cry (the keen), a dirge; comh with
   + ranaich a roaring, ran to roar, shriek.]
   A lamentation for the dead; a dirge. [Written also
   coranich, corrinoch, coronach, cronach, etc.] [Scot.]
   [1913 Webster] Corant