The Collaborative International Dictionary of English v.0.48:

Bleat \Bleat\, v. i. [imp. & p. p. Bleated; p. pr. & vb. n.
   Bleating.] [OE. bleten, AS. bl?tan; akin to D. blaten,
   bleeten, OHG. bl[=a]zan, pl[=a]zan; prob. of imitative
   origin.]
   To make the noise of, or one like that of, a sheep; to cry
   like a sheep or calf.
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         Then suddenly was heard along the main,
         To low the ox, to bleat the woolly train. --Pope
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         The ewe that will not hear her lamb when it baas, will
         never answer a calf when he bleats.      --Shak.
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The Collaborative International Dictionary of English v.0.48:

Bleating \Bleat"ing\, a.
   Crying as a sheep does.
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         Then came the shepherd back with his bleating flocks
         from the seaside.                        --Longfellow.
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The Collaborative International Dictionary of English v.0.48:

Bleating \Bleat"ing\, n.
   The cry of, or as of, a sheep. --Chapman.
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