PI'OUS, adjective [Latin pius.]
1. Godly; reverencing and honoring the Supreme Being in heart and in the practice of the duties he has enjoined; having due veneration and affection for the character of God, and habitually obeying his commands; religious; devoted to the service of God; applied to persons.
2. Dictated by reverence to God; proceeding from piety; applied to things; as pious awe; pious services of affections; pious sorrow.
3. Having due respect and affection for parents or other relatives; practicing the duties of respect and affection towards parents or other near relatives.
4. Practiced under the pretense of religion; as pious frauds.