The Collaborative International Dictionary of English v.0.48:

Sainthood \Saint"hood\, n.
   1. The state of being a saint; the condition of a saint.
      --Walpole.
      [1913 Webster]

   2. The order, or united body, of saints; saints, considered
      collectively.
      [1913 Webster]

            It was supposed he felt no call to any expedition
            that might endanger the reign of the military
            sainthood.                            --Sir W.
                                                  Scott.
      [1913 Webster]

WordNet (r) 3.0 (2006):

sainthood
    n 1: saints collectively
    2: the status and dignity of a saint