Correlate

Webster's Dictionary of the English Language

·vi To have reciprocal or mutual relations; to be mutually related.

II. Correlate ·noun One who, or that which, stands in a reciprocal relation to something else, as father to son; a correlative.

III. Correlate ·vt To put in relation with each other; to connect together by the disclosure of a mutual relation; as, to correlate natural phenomena.