expurgatory

from The Collaborative International Dictionary of English v.0.48

Expurgatory \Ex*pur"ga*to*ry\, a. [Cf. F. expurgatoire.]
   Serving to purify from anything noxious or erroneous;
   cleansing; purifying. "Expurgatory animadversions." --Sir T.
   Browne.
   [1913 Webster]

   {Expurgatory Index}. See {Index Expurgatorius}, under
      {Index}.
      [1913 Webster]