Where does “unfaulty” come from?

unfaulty (English) comes from English faulty, from English fault, from Middle English faulte, from Old French faute, from Vulgar Latin fallita, from Latin falsus, from Latin fallō, from Proto-Indo-European ǵʰwel- — to bend; to lie, deceive.

unfaulty (English): Not faulty

Definitions

  1. Not faulty

Ancestry of “unfaulty”, step by step

unfaulty traces back through two separate lines of ancestry.

via English faulty

StepLanguageWordMeaning
1EnglishfaultyHaving or displaying faults; not perfect; not...
2EnglishfaultA defect; something that detracts from...
3Middle Englishfaulte
4Old Frenchfautefault; error; mistake
5Vulgar Latinfallitashortcoming
6Latinfalsusdeceived, tricked, cheated, disappointed, having...
7Latinfallōto deceive, beguile, trick, cheat, delude, ensnare, disappoint
8Proto-Indo-Europeanǵʰwel-to bend; to lie, deceive

via English un

StepLanguageWordMeaning
1EnglishunOne
Every word from Proto-Indo-European ǵʰwel-Every word from Latin fallōEvery word from Latin falsus