Piety
Etymology
From Latin "pietas" (dutifulness), from "pius" (devout, dutiful) — the epithet Virgil gave his hero in "pius Aeneas." To a Roman, pietas meant duty to gods, family, and state alike. English "pity" descends from the very same root before the two senses split.
noun · /PY-uh-tee/
Devout reverence for God, or dutiful respect toward family, tradition, or country.
What it names
Useful for naming faithful, dutiful devotion — and, with a sardonic edge, for hollow shows of virtue.
Example
Her grandmother’s piety showed less in sermons than in the small daily rituals she never skipped.
Related idea
Piety is inward devotion made visible; when that display outruns the feeling, it curdles into sanctimony.