Source : Webster's Revised Unabridged Dictionary (1913)

Necessitude \Ne*ces"si*tude\, n. [L. necessitudo, fr. necesse.
   See {Necessray}.]
   1. Necessitousness; want. --Sir M. Hale.

   2. Necessary connection or relation.

            Between kings and their people, parents and their
            children, there is so great a necessitude,
            propriety, and intercourse of nature. --Jer. Taylor.