The Collaborative International Dictionary of English v.0.48:

Moravian \Mo*ra"vi*an\, n. (Eccl. Hist.)
   One of a religious sect called the United Brethren (an
   offshoot of the Hussites in Bohemia), which formed a separate
   church of Moravia, a northern district of Austria, about the
   middle of the 15th century. After being nearly extirpated by
   persecution, the society, under the name of The Renewed
   Church of the United Brethren, was reestablished in 1722-35
   on the estates of Count Zinzendorf in Saxony. Called also
   Herrnhuter.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Herrnhuter \Herrn"hut*er\ (h[~e]rn"h[u^]*[~e]r; G.
   h[e^]rn"h[=oo]*[~e]r), n. (Eccl. Hist.)
   One of the Moravians; -- so called from the settlement of
   Herrnhut (the Lord's watch) made, about 1722, by the
   Moravians at the invitation of Nicholas Lewis, count of
   Zinzendorf, upon his estate in the circle of Bautzen.
   [1913 Webster]