Webster's Revised Unabridged Dictionary · 1913

Bogle

Bogle ({not transcribed}) , noun

[Scot. and North Eng. bogle, bogill, bugill, specter; as a verb, to terrify, from Welsh bwgwl threatening, fear, bwg, bwgan, specter, hobgoblin. Compare Bug.]

A goblin; a specter; a frightful phantom; a bogy; a bugbear.