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Webster 1913 Edition
Baa
Baa
(bä)
, Verb.
 I.
 [Cf. G. 
bäen
; an imitative word.] To cry baa, or bleat as a sheep. 
He treble 
 baas 
for help, but none can get. Sir P. Sidney.
Baa
(bä)
, Noun.
pl. 
Baas 
(bäz)
. [Cf. G. 
bä
.] The cry or bleating of a sheep; a bleat. 
Webster 1828 Edition
Baa
B'AA
,Noun.
  B'AA
,Verb.
I.