The Collaborative International Dictionary of English v.0.48:

Partake \Par*take"\ (p[aum]r*t[=a]k"), v. i. [imp. Partook
   (p[aum]r*t[oo^]k"); p. p. Partaken (p[aum]r*t[=a]k"'n); p.
   pr. & vb. n. Partaking.] [Part + take.]
   [1913 Webster]
   1. To take a part, portion, lot, or share, in common with
      others; to have a share or part; to participate; to share;
      as, to partake of a feast with others. "Brutes partake in
      this faculty." --Locke.
      [1913 Webster]

            When I against myself with thee partake. --Shak.
      [1913 Webster]

   2. To have something of the properties, character, or office;
      -- usually followed by of.
      [1913 Webster]

            The attorney of the Duchy of Lancaster partakes
            partly of a judge, and partly of an
            attorney-general.                     --Bacon.
      [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

38 Moby Thesaurus words for "partaking":
   accessory, affiliation, association, cochairmanship, companionship,
   company, complicity, condominium, consociation, contribution,
   cooperation, copartnership, copartnery, cotenancy, engaged,
   engagement, fellowship, fraternity, fraternization, having a part,
   implicated, involved, involvement, joint chairmanship,
   joint control, joint ownership, joint tenancy, membership,
   participant, participating, participation, participative,
   participatory, partnership, sharing, society, suffrage, voting