Unicity
Pronunciation : U*nic"i*ty
Part of Speech : n.
Etymology : [L. unicus single. See Unique.]
Definition : Defn: The condition of being united; quality of the unique; unification. Not unity, but what the schoolmen call unicity. De Quincey. The unicity we strive not to express, for that is impossible, but to designate by the nearest analogy. Coleridge.
Source : Webster's Unabridged Dictionary, 1913