[1] : The Collaborative International Dictionary of English v.0.48

crowd \crowd\, n. w. crwth; akin to gael. cruit. perh. named
   from its shape, and akin to gr. kyrto`s curved, and e. curve.
   cf. rote.
   an ancient instrument of music with six strings; a kind of
   violin, being the oldest known stringed instrument played
   with a bow. written also croud, crowth, cruth, and
   crwth.
   1913 webster

         a lackey that . . . can warble upon a crowd a little.
                                                  --b. jonson.
   1913 webster
see also:
rote croud crowth cruth crwth 

[2] : The Collaborative International Dictionary of English v.0.48

crwth \crwth\ kr=ooth, n. w. mus.
   see 4th crowd.
   1913 webster
see also:
crowd 

Crwth >> C Words
Crwth, definition of term: Crwth
crwth_pag1.html