Purity

n.
  1. freedom from foreign admixture or deleterious matter; as, the purity of water, of wine, of drugs, of metals.
  2. Cleanness; freedom from foulness or dirt.
  3. Freedom from guilt or the defilement of sin; innocence; chastity; as, purity of heart or of life.
  4. Freedom from any sinister or improper motives or views.
  5. Freedom from foreign idioms, or from barbarous or improper words or phrases; as, purity of style.