Carefulness, precaution, attentiveness, and good judgment, as applied to action or conduct That degree of care required by the exigencies or circumstances under which it ie to be exercised. Cronk v. Railway Co., 3 S. D. 93, 52 N. W. 420. This term, in the language of the law, is commonly associated with “care” and “diligence" and contrasted with “negligence.” See those ti-ties
Source: Black's Law Dictionary 2nd Ed (1910)