Neglect, failure, or refusal to do or perform an act stipulated to be done. Failure to keep the terms of a contract or covenant, in respect to acts or doings agreed upon. Non pertinet ad judicem secularem cognoscere de lis quae sunt mere spi- ritualia annexa. 2 Inst. 4SS. It belongs not to the secular judge to take cognizance of things which are merely spiritual.