propinquity

noun2

1. •
   (literary) Nearness or proximity

   • Some experimental spirits could not resist the diversion of throwing Varick and his former wife together, and there were those who thought he found a zest in the propinquity. — 1904
2. •
   (literary) Affiliation or similarity.

   • Heere I disclaime all my Paternall care, / Propinquity and property of blood, / And as a stranger to my heart and me, / Hold thee from this for euer. — 1603