Where does “unreliability” come from?

Unreliability derives from English reliable, which combines English un- and Latin -itas suffixed to Proto-Indo-European ano-, meaning "not" or "without."

unreliability (English): The quality of being unreliable

Definitions

  1. The quality of being unreliable

Ancestry of “unreliability”, step by step

StepLanguageWordMeaning
1EnglishreliabilityThe quality of being reliable, dependable, or...
2EnglishreliableSuitable or fit to be relied on; worthy of...
3Englishrelyto trust; to have confidence in; to depend
4Old Frenchrelierfasten, attach, rally, oblige
5Latinreligōto bind fast
6Latinrĕ-back, backwards
7Latinprōdūcōto lead or bring forth, forward or out
8Latinprō-forward direction, forward movement
9Proto-Italic*pro-pro- see the Latin entry for further meanings
10Proto-Indo-Europeanpro-toward, forward
11Proto-Indo-Europeanpor-to give birth; forward, through; going, passage
12Proto-Indo-Europeanper-before, in front; first; to go through
13Proto-Indo-Europeanpr̥tóspassed , crossed
Every word from Proto-Indo-European pr̥tósEvery word from Proto-Indo-European per-Every word from Latin rĕ-
unreliability — Etymology, Origin & Word History | Etymology Explorer