Dictionary
sub•serve
Pronunciation: (sub-sûrv'), [key]—
v.t., -served, -serv•ing.
1. to be useful or instrumental in promoting (a purpose, action, etc.):
Light exercise subserves digestion.
2. Obs.to serve as a subordinate.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.