piety

Definitions:

The quality of being pious; veneration of the Supreme Being; affectionate reverence of parents or friends.
- Nuttall's Standard dictionary of the English language. By Nuttall, P.Austin. Published 1914. (noun) (n.) (noun)
A constant sense of dependence on the Supreme Being, attended with love and reverence of Him, and a disposition to know and obey His will; reverence of parents and obedience to them, with a constant effort to preserve their honour and promote their happiness- called also filial piety.
- Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874. (noun) (n.) (noun)
Reverence for the Deity, parents, & c.; pious conduct or character.
- The Clarendon dictionary. By William Hand Browne, Samuel Stehman Haldeman. Published 1894. (noun) (n.) (noun)
The quality of being pious: reverence for the Deity, parents, friends, or country: sense of duty: dutiful conduct.
- The american dictionary of the english language. By Daniel Lyons. Published 1899. (noun) (n.) (noun)
The quality of being very religious; reverence for and duty towards God; goodness.
- The Winston Simplified Dictionary. By William Dodge Lewis, Edgar Arthur Singer. Published 1919. (noun) (n.) (noun)
Which see.
- The american dictionary of the english language. By Daniel Lyons. Published 1899. (noun) (n.) (noun)

Usage examples:

Is not piety in every action always the same?
- Euthyphro by Plato
For our great Father counteth piety Far above all.
- The Seven Plays in English Verse by Sophocles
Such were the objects which the simple piety of the early Egyptian prompted him to bury with the bodies of his dead, in order that they might find solace and contentment in the other world.
- History Of Egypt, Chaldæa, Syria, Babylonia, And Assyria In The Light Of Recent Discovery by L.W. King and H.R. Hall