Black's Law Dictionary (2nd edition)dictionaries

Sinderesis

“A natural power of the soul, set in the highest part thereof, moving and stirring It to good, and adhorring evlL And therefore sinderesis never sinneth nor erreth. And this sinderesis our Lord put in man, to the intent that the order of thlngs shonld be observed. And therefore sinderesis is called hy some men the ‘law of reason,’ for it mintstereth the principles of the law of reason, the whlch be In every man by na-ture, in that he is a reasonable creature." Doct & Stud. 89

Source: Black's Law Dictionary 2nd Ed (1910)