The Collaborative International Dictionary of English v.0.48:

Hymn \Hymn\ (h[i^]m), n. [OE. hympne, ympne, F. hymne, OF. also
   ymne, L. hymnus, Gr. ?; perh. akin to ? web, ? to weave, and
   so to E. weave.]
   An ode or song of praise or adoration; especially, a
   religious ode, a sacred lyric; a song of praise or
   thanksgiving intended to be used in religious service; as,
   the Homeric hymns; Watts' hymns.
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         Admonishing one another in psalms and hymns. --Col.
                                                  iii. 16.
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         Where angels first should practice hymns, and string
         Their tuneful harps.                     --Dryden.
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   Hymn book, a book containing a collection of hymns, as for
      use in churches; a hymnal.
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