antepraedicamentum

Etymology
From, i.e. “that which is before predication”.

Noun

 * 1)  A fundamental category of logic that is necessary to establish the possibility of any predication.

Usage notes
Applied specifically to the first three chapters of ’s  in scholastic theology, and traditionally enumerated as the distinctions between univocity and equivocality, complexity and simplicity, substance and accident, and genus and differentia.