Baptistry

{ n.; pl. Baptisteries Baptistries [ L. baptisterium, Gr. baptisth`rion: cf. F. baptistère. ] (Arch.) (a) In early times, a separate building, usually polygonal, used for baptismal services. Small churches were often changed into baptisteries when larger churches were built near. (b) A part of a church containing a font and used for baptismal services. [ 1913 Webster ]

n. The doctrine, system, or practice, of Anabaptists. [ R. ] [ 1913 Webster ]

Thus died this imaginary king; and Anabaptistry was suppressed in Munster. Pagitt. [ 1913 Webster ]