2:2 is defined in the Merriam-Webster Collegiate Dictionary as "1: Divine 2: pious, devout -", but in Vines, it is defined as " 'to be devout,' denotes that piety which is characterized by a Godward attitude, does that which is well-pleasing to Him." So we have a fuller meaning of the word by seeing how the word is used in the NT.
The definition of 2:2 from Merriam-Webster Collegiate Dictionary is "1: Divine 2: pious, devout -". However, Vines defines it as " 'to be devout,' denoting piety characterized by a Godward attitude and actions pleasing to Him." This fuller understanding comes from examining how the word is used in the New Testament.