cumbrance

from The Collaborative International Dictionary of English v.0.48

Cumbrance \Cum"brance\ (k?m"brans), n.
   Encumbrance. [Obs.]
   [1913 Webster]

         Extol not riches then, the toil of fools,
         The wise man's cumbrance, if not snare.  --Milton.
   [1913 Webster]