Source : Webster's Revised Unabridged Dictionary (1913)

Propinquity \Pro*pin"qui*ty\, n. [L. propinquitas, from
   propinquus near, neighboring, from prope near.]
   1. Nearness in place; neighborhood; proximity.

   2. Nearness in time. --Sir T. Browne.

   3. Nearness of blood; kindred; affinity. --Shak.

Source : WordNet®

propinquity
     n : the property of being close together [syn: {proximity}]