Preparative /(?)/

Pre·par·a·tive

Preparative

a.
  1. Tending to prepare or make ready; having the power of preparing, qualifying, or fitting; preparatory.
    Laborious quest of knowledge preparative to this work.

Preparative

n.
  1. That which has the power of preparing, or previously fitting for a purpose; that which prepares.
  2. That which is done in the way of preparation.