reliably

UK: rɪˈlaɪəbli | US: rɪˈlaɪəbli

Definition
  1. adv. in a dependable or trustworthy manner

  2. adv. consistently accurate or effective

Structure
rely <depend>able <capable>ly <adverb suffix>
Etymology

The word "reliably" stems from the verb "rely," which originates from Old French relier (to bind together, from Latin religare, meaning "to fasten"). The suffix "-able" (from Latin -abilis) transforms it into an adjective meaning "capable of being depended on," and the adverbial suffix "-ly" (from Old English -lice) converts it into an adverb. The progression reflects a shift from physical binding (Latin) to abstract trustworthiness (Modern English).

Examples
  1. The system performs reliably under heavy loads.

  2. She reliably completes her tasks before deadlines.

  3. This car model is known to run reliably for years.

  4. The study’s results were reliably reproduced in subsequent tests.

  5. He reliably provides accurate weather forecasts.