The Collaborative International Dictionary of English v.0.48:

Exprobration \Ex`pro*bra"tion\, n. [L. exprobration: cf. F.
   exprobration.]
   Reproachful accusation; upbraiding. [Obs.]
   [1913 Webster]

         A fearful exprobration of our unworthiness. --Jer.
                                                  Taylor.
   Exprobrative