Source : Webster's Revised Unabridged Dictionary (1913)

Godliness \God"li*ness\, n. [From {Godly}.]
   Careful observance of, or conformity to, the laws of God; the
   state or quality of being godly; piety.

         Godliness is profitable unto all things. --1 Tim. iv.
                                                  8.

Source : WordNet®

godliness
     n : piety by virtue of being a godly person [ant: {ungodliness}]