Sanctimony, n.
Etymology: [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. Her pretense is a pilgrimage; . . . which holy undertaking with most austere sanctimony she accomplished. Shak.
Shades of meaning
Fernald has no entry of its own for sanctimony; he lists it under hypocrisy.
He lists it without comment; the entries above explain its neighbors.