The Collaborative International Dictionary of English v.0.48:

Sanctimony \Sanc"ti*mo*ny\, n. [L. sanctimonia, fr. sanctus
   holy: cf. OF. sanctimonie. See Saint.]
   Holiness; devoutness; scrupulous austerity; sanctity;
   especially, outward or artificial saintliness; assumed or
   pretended holiness; hypocritical devoutness.
   [1913 Webster]

         Her pretense is a pilgrimage; . . . which holy
         undertaking with most austere sanctimony she
         accomplished.                            --Shak.
   [1913 Webster]

WordNet (r) 3.0 (2006):

sanctimony
    n 1: the quality of being hypocritically devout [syn:
         sanctimoniousness, sanctimony]

Moby Thesaurus II by Grady Ward, 1.0:

61 Moby Thesaurus words for "sanctimony":
   Pecksniffery, Quakerishness, Tartuffery, Tartuffism, bibliolatry,
   cant, censoriousness, charismatic gift, charismatic movement,
   charismatic renewal, demureness, demurity, empty gesture,
   false modesty, false piety, fanaticism, gift of tongues,
   glossolalia, hideboundness, hypocrisy, hypocriticalness,
   lip service, mauvaise honte, mealymouthedness, mouthing, mummery,
   narrowness, oiliness, ostentatious devotion, overdevoutness,
   overmodesty, overpiousness, overreligiousness, overrighteousness,
   overzealousness, pecksniffery, pentecostalism, pharisaicalness,
   pharisaism, priggishness, primness, prudery, prudishness,
   puritanicalness, religiosity, revival, revivalism,
   sanctimoniousness, smugness, snuffling, soft soap,
   stiff-neckedness, straitlacedness, stuffiness, sweet talk,
   tokenism, unctuousness, zeal, zealotism, zealotry, zealousness