Vvvriprtats, from QuvTr)pEiv, to look after, take care of), but synderesis is the commoner form.
The term synderesis, however, is not found till Jerome, who in dealing with Ezek.
Here apparently synderesis and conscience (o vv€LSrtacs) are equivalent.
By the schoolmen, however, the terms were differentiated, conscience being the practical envisaging of good and evil actions; synderesis being, so to speak, the tendency toward good in thought and action.
The exact relation between the two was, however, a matter of controversy, Aquinas and Duns Scotus holding that both are practical reason, while Bonaventura narrows synderesis to the volitional tendency to good actions.