dullahan

Etymology
, from + another word (compare ), possibly originally a term for a dark or sullen person (compare the surname ) and only subsequently applied to the spirit.

Noun

 * 1)  A black-clad (usually male) horserider in Irish folklore which carries its severed head like a lantern and may be repelled by gold; when it stops riding (or calls out someone's name), someone will die.

Alternative forms

 * Dullahan
 * dullaghan, Dullaghan