Subserve \Sub*serve"\, v. t. [imp. & p. p. {Subserved}; p. pr. & vb. n. {Subserving}.] [L. subservire; sub under + servire to serve. See {Serve}.] To serve in subordination or instrumentally; to be subservient to; to help forward; to promote. It is a great credit to know the ways of captivating Nature, and making her subserve our purposes, than to have learned all the intrigues of policy. --Glanvill.