Correlative (kr-rl-tv), a.
Etymology: [Cf. F. corrélatif.]
Having or indicating a reciprocal relation. Father and son, prince and subject, stranger and citizen, are correlative terms. Hume.
1 other Webster entry under this spelling
Correlative, 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.
Shades of meaning
Fernald has no entry of its own for correlative; he lists it under mutual.
He lists it without comment; the entries above explain its neighbors.