correlative

Concise Oxford English Dictionary © 2008 Oxford University Press:
correlative /kəˈrɛlətɪv/

▶adjective

• 1 having a correlation.

• 2 Grammar (of words such as neither and nor) corresponding to each other and regularly used together.

▶noun a correlative word or concept.

– derivatives
correlatively adverb,
correlativity noun.

– origin C16: from med. L. correlativus, from cor- ‘together’ + late L. relativus ‘having reference or relation’ (see relate).