/
kəˈrɛlətɪv/
adj.
  - having a correlation.
 - Grammar  (of words such as neither and nor) corresponding to each other and regularly used together.
 
n.
 a correlative word or concept.
Derivative
- correlatively adv.
  - correlativity n.
 
Etymology
C16: from med. L. correlativus, from cor- ‘together’ + late L. relativus ‘having reference or relation’ (see relate).