Celli

from The Collaborative International Dictionary of English v.0.48

Cello \Cel"lo\ (ch[e^]l"l[-o]), n.; pl. E. {Cellos}
   (ch[e^]l"l[-o]z), It. {Celli} (ch[e^]l"l[=e]).
   A contraction for {Violoncello}.
   [1913 Webster]