connature

plural connatures

1. archaiccountableuncountableA common or shared nature or character.

   Connature was defined as likeness in kind between either two changes in consciousness, or two states of consciousness.

   1855, Herbert Spencer, The Principles of Psychology

   1 more example

   Nothing is to be said respecting the connature of relations in its various modes, beyond describing it; for the relation of connature is not decomposable into other relations.

   1888, Walter Bowers Pillsbury, The Fundamentals of Psychology