Correlative

Cor*rel"a*tive (k?r-r?l"?-t?v), a. [Cf. F. corrélatif.] Having or indicating a reciprocal relation.

Father and son, prince and subject, stranger and citizen, are correlative terms.
Hume.

Cor*rel"a*tive, n. 1. One who, or that which, stands in a reciprocal relation, or is correlated, to some other person or thing. Locke.

Spiritual things and spiritual men are correlatives.
Spelman.

2. (Gram.) The antecedent of a pronoun.