de·ter·mine / diˈtərmin/ • v. [tr.] 1. cause (something) to occur in a particular way; be the decisive factor in: it will be her mental attitude that determines her future. ∎  firmly decide: she determined to tackle Stephen the next day | [intr.] he determined on a withdrawal of his forces. 2. ascertain or establish exactly, typically as a result of research or calculation: our aim is to determine the electric field | the point of our study was to determine what is true, not what is practicable. ∎  Math. specify the value, position, or form of (a mathematical or geometric object) uniquely.3. archaic Law bring or come to an end.

determine XIV. — (O)F. déterminer L. dētermināre bound, limit, fix, f. DE- 3 + termināre TERMINATE
So determinant XVII, determination XIV.