Source : Webster's Revised Unabridged Dictionary (1913)

Commerce \Com*merce"\ (? or ?), v. i. [imp. & p. p. {Commerced};
   p>. pr. & vb. n. {Commercing}.] [Cf. F. commercer, fr. LL.
   commerciare.]
   1. To carry on trade; to traffic. [Obs.]

            Beware you commerce not with bankrupts. --B. Jonson.

   2. To hold intercourse; to commune. --Milton.

            Commercing with himself.              --Tennyson.

            Musicians . . . taught the people in angelic
            harmonies to commerce with heaven.    --Prof.
                                                  Wilson.