[1] : The Collaborative International Dictionary of English v.0.48

sanctify \sanc"tify\, v. t. imp.  p. p. sanctified; p. pr.
    vb. n. sanctifying. f. sanctifier, l. sanctificare;
   sanctus holy + -ficare in comp. to make. see saint, and
   -fy.
   1. to make sacred or holy; to set apart to a holy or
      religious use; to consecrate by appropriate rites; to
      hallow.
      1913 webster

            god blessed the seventh day and sanctified it.
                                                  --gen. ii. 3.
      1913 webster

            moses . . . sanctified aaron and his garments.
                                                  --lev. viii.
                                                  30.
      1913 webster

   2. to make free from sin; to cleanse from moral corruption
      and pollution; to purify.
      1913 webster

            sanctify them through thy truth.      --john xvii.
                                                  17.
      1913 webster

   3. to make efficient as the means of holiness; to render
      productive of holiness or piety.
      1913 webster

            a means which his mercy hath sanctified so to me as
            to make me repent of that unjust act. --eikon
                                                  basilike.
      1913 webster

   4. to impart or impute sacredness, venerableness,
      inviolability, title to reverence and respect, or the
      like, to; to secure from violation; to give sanction to.
      1913 webster

            the holy man, amazed at what he saw,
            made haste to sanctify the bliss by law. --dryden.
      1913 webster

            truth guards the poet, sanctifies the line. --pope.
      1913 webster
see also:
sanctified sanctifying saint -fy 

[2] : WordNet (r) 2.0

sanctify
     v 1: render holy by means of religious rites syn: consecrate,
          bless, hallow ant: desecrate
     2: make pure or free from sin or guilt; "he left the monastery
        purified" syn: purify, purge
     also: sanctified
see also:
consecrate bless hallow desecrate purify purge 
sanctified 

[3] : Moby Thesaurus II by Grady Ward, 1.0

40 moby thesaurus words for "sanctify":
   aggrandize, apotheose, apotheosize, beatify, bless, canonize,
   cleanse, confirm, consecrate, crown, dedicate, deify, devote,
   elevate, ennoble, enshrine, enthrone, exalt, glamorize, glorify,
   hallow, immortalize, justify, legalize, legitimate, legitimatize,
   legitimize, license, lionize, magnify, make legendary, purify,
   raise, ratify, saint, sanction, set apart, set up, throne,
   uplift

Sanctify >> S Words
Sanctify, definition of term: Sanctify
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