A correlative conjunction is a conjunction using two conjunctions to connect a word, phrase, or clause.
Both Jeb and Mary will need to retake the test.
I will eat my hat if either Mary wins the race or Jeb finishes the race.
Greek:
και… και… = both/and
μητε… μητε… = neither/nor
ουτε… ουτε… = neither/nor
ἢ… ἢ… = either/or