PIACLE
Source: 566, 567
piacle. Piacle, n. a great crime, hainous fault, sacrifice, ob.
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Pi″a‐cle (?), n. [[L. piaculum a propitiatory sacrifice, that which requires expiation, a wicked action, fr. piare to appease, to expiate, pius pious.]] A heinous offense which requires expiation. Howell.