The Collaborative International Dictionary of English v.0.48:

Sainted \Saint"ed\, a.
   1. Consecrated; sacred; holy; pious. "A most sainted king."
      --Shak.
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            Amongst the enthroned gods on sainted seats.
                                                  --Milton.
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   2. Entered into heaven; -- a euphemism for dead.
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The Collaborative International Dictionary of English v.0.48:

Saint \Saint\ (s[=a]nt), v. t. [imp. & p. p. Sainted; p. pr. &
   vb. n. Sainting.]
   To make a saint of; to enroll among the saints by an offical
   act, as of the pope; to canonize; to give the title or
   reputation of a saint to (some one).
   [1913 Webster]

         A large hospital, erected by a shoemaker who has been
         beatified, though never sainted.         --Addison.
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   To saint it, to act as a saint, or with a show of piety.
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            Whether the charmer sinner it or saint it. --Pope.
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WordNet (r) 3.0 (2006):

sainted
    adj 1: marked by utter benignity; resembling or befitting an
           angel or saint; "angelic beneficence"; "a beatific
           smile"; "a saintly concern for his fellow men"; "my
           sainted mother" [syn: angelic, angelical, beatific,
           saintlike, saintly, sainted]