subs. phr. (old colloquial).—A BIBLE-OATH (q.v.).

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  d. 1563.  BALE, Works. ‘Examination of William Thorpe,’ III. He that layeth his hand upon a book in this wise, and maketh there a promise to do that thing that he is commanded, is obliged there, by BOOK-OATH, then to fulfil his charge.

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