Available Definitions:
1) a. - Bending or turned backward; reflective; having respect to something past.
2) a. - Implying censure.
3) a. - Having for its direct object a pronoun which refers to the agent or subject as its antecedent; -- said of certain verbs; as, the witness perjured himself; I bethought myself. Applied also to pronouns of this class; reciprocal; reflective.