co-ordinate (root: coordinate)

 To make coördinate; to put in the same order or rank; as, to coördinate ideas in classification.  [1913 Webster]

 To give a common action, movement, or condition to; to regulate and combine so as to produce harmonious action; to adjust; to harmonize; as, to coördinate muscular movements.  [1913 Webster]

 to be co-ordinated; as, These activities co-ordinate well.  [WordNet 1.5]