noun
fidelity
fi-DEL-uh-tee/fɪˈdeləti/
Faithful adherence to a person or an established original.
The artist copies the original painting with remarkable fidelity.

Etymology
The quality of being faithful extends from loyalty to people and duties to faithfulness to truth or reality. This connects personal devotion with accurate adherence to an original source.
In context
We promise to be faithful to You for the rest of our lives and to observe with fidelity Your Holy Commandments.
More examples
- Their marriage depends on mutual trust and fidelity.
- Her fidelity to the cause never wavers.
- The translation preserves the poem's meaning with great fidelity.
Forms
infidelity noun — Unfaithfulness to a spouse or romantic partner.
Similar words
- loyalty
- Emphasizes continued support rather than accuracy in reproducing an original.
- accuracy
- Emphasizes correctness, not necessarily faithfulness to a particular original.