\Re*spon"so*ry\ (r?*sp?n"s?*r?), a.
Containing or making answer; answering. --Johnson.

\Re*spon"so*ry\, n.; pl. {-ries} (-r?z). [LL.
responsorium.]
1. (Eccl.)
   (a) The answer of the people to the priest in alternate
       speaking, in church service.
   (b) A versicle sung in answer to the priest, or as a
       refrain.
             Which, if should repeat again, would turn my
             answers into responsories, and beget another
             liturgy.                          --Milton.
2. (Eccl.) An antiphonary; a response book.