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

halves \halves\ haumvz, n.,
   pl. of half.
   1913 webster

   by halves, by one half at once; halfway; fragmentarily;
      partially; incompletely.
      1913 webster

            i can not believe by halves; either i have faith, or
            i have it not.                        --j. h.
                                                  newman.
      1913 webster

   to go halves. see under go.
      1913 webster
see also:
half by halves to go halves go 

Halves >> H Words
Halves, definition of term: Halves
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