fidelity

UK: fɪˈdɛlɪti | US: fɪˈdɛləti

Definition
  1. n. faithfulness to a person, cause, or belief, demonstrated by continuing loyalty and support

  2. n. the degree of exactness with which something is copied or reproduced

Structure
fid <faith>elity <noun suffix>
Etymology

fidelity = fid<faith> + elity<noun suffix>

  • fid (from Latin fidēs, meaning "faith, trust")
  • elity (noun-forming suffix, derived from Latin -elitas, indicating a state or condition)

Etymology Origin:
The word "fidelity" traces back to the Latin fidēlitās, which stems from fidēlis ("faithful"), itself rooted in fidēs ("faith"). The core concept of trustworthiness has persisted through its evolution into Old French fidélité and later Middle English. The suffix -ity (via Latin -itas) generalizes the abstract quality of being faithful, whether in relationships (e.g., marital fidelity) or technical accuracy (e.g., audio fidelity).

Examples
  1. His fidelity to the company was rewarded with a promotion.

  2. The translation was praised for its fidelity to the original text.

  3. Marital fidelity is a cornerstone of their relationship.

  4. High-fidelity audio systems reproduce sound with minimal distortion.

  5. The documentary aimed for historical fidelity in its portrayal of events.