reliability
UK: rɪˌlaɪəˈbɪləti | US: rɪˌlaɪəˈbɪləti
n. the quality of being dependable or trustworthy
n. the ability of a system or component to perform its required functions under given conditions for a specified period of time
The word reliability combines rely (rooted in the idea of binding or attachment) with -ability (denoting capacity). It evolved from the literal sense of "being bound together" to the abstract concept of "dependability." The suffix -ity solidifies it as a noun describing a steadfast quality.
The reliability of this car model has made it a top choice for families.
Engineers tested the machine’s reliability under extreme conditions.
Her reliability as a team member earned her a promotion.
Data reliability is crucial for scientific research.
The study questioned the reliability of eyewitness testimony.