Source : Webster's Revised Unabridged Dictionary (1913)

Conduce \Con*duce"\, v. i. [imp. & p. p. {Conduced}; p. pr. &
   vb. n. {Conducing}.] [L. conducere to bring together,
   conduce, hire; con- + ducere to lead. See {Duke} and cf.
   Conduct, n., {Cond}.]
   To lead or tend, esp. with reference to a favorable or
   desirable result; to contribute; -- usually followed by to or
   toward.

         He was sensible how much such a union would conduce to
         the happiness of both.                   --Macaulay.

         The reasons you allege do more conduce To the hot
         passion of distemper'd blood.            --Shak.

   Syn: To contribute; aid; assist; tend; subserve.