n. [ Scot. and North Eng. bogle, bogill, bugill, specter; as a verb, to terrify, fr. W. bwgwl threatening, fear, bwg, bwgan, specter, hobgoblin. Cf. Bug. ] A goblin; a specter; a frightful phantom; a bogy; a bugbear. [ Written also boggle. ] [ 1913 Webster ]