dial. [Corn. bucca ‘hobgoblin, bugbear, scarecrow,’ app. cogn. with mod.Welsh bwgan specter.] a. A bogle; applied inter alia to the subterranean spirits supposed to frequent tin-mines (see Philos. Trans., vol. I.). b. A stupid person. The compounds bucca-boo (bugaboo), bucca-gwidden, are also in dial. use (see quots.).

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1865.  R. Hunt, Pop. Romances W. Eng., Ser. I. 67. The Buccas or knockers—These are the sprites of the mines, and correspond to the Kobals of the German mines.

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1880.  West Cornw. Gloss., 7. Newlyn buccas, strong as oak, Knocking ’em down at every poke. Bucca-boo, a ghost; a bug-bear; a black bucca. Bucca-gwidden, a precocious child; a simple innocent; an insane person.

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