The Collaborative International Dictionary of English v.0.48:

commonalty \com"mon*al*ty\, commonality \com`mon*al"i*ty\, n.;
   pl. Commonalties. [OF. communalt['e]; F. communaut['e], fr.
   communal. See Communal.]
   1. The common people; those classes and conditions of people
      who are below the rank of nobility; the commons.
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            The commonalty, like the nobility, are divided into
            several degrees.                      --Blackstone.
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            The ancient fare of our kings differed from that of
            the commonalty in plenteousness only. --Landon.
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   2. The majority or bulk of mankind. [Obs.] --Hooker.
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