Fromco- +‎reference.

coreference (countable anduncountable,pluralcoreferences)

1. (grammar) Therelationship between multipleterms that have a commonreferent.
   • 1988, Andrew Radford,Transformational grammar: a first course, Cambridge, UK: Cambridge University Press, page119:

     If we use subscript letters to indicatecoreference (so that two NPs
     with the same subscript refer to the same entity, whereas two NPs with differ-
     ent subscripts refer to different entities), then we can say that (19) is ambigu-
     ous as between the two interpretations represented in (20) below:
     (20) (i)      The men_i will shoot the arrows_j at each other_j
            (ii)      The men_i will shoot the arrows_j at each other_i

• corefer
• coreferential

• anaphora
• deixis