co-ordinate (root: coordinate)

co-or=di=nate

WORDNET DICTIONARY

co-ordinate(n = noun.cognition) coordinate - a number that identifies a position relative to an axis;

has particulars: cartesian coordinate, polar coordinate

is a kind of number

co-ordinate, v. t.

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]