Available Definitions:
1) a. - Tending to invite favor; attracting confidence, favor, esteem, or love; attractive; as, a prepossessing manner.
2) v. t. - To preoccupy, as the mind or heart, so as to preclude other things; hence, to bias or prejudice; to give a previous inclination to, for or against anything; esp., to induce a favorable opinion beforehand, or at the outset.