Where does “failable” come from?

failable (English) comes from English able, from Middle English able, from Old French able, from Latin habilis, from Latin -ilis, from Proto-Italic -elis, from Proto-Indo-European -elis, from Proto-Indo-European -lós — Forms agent nouns from verbal roots.

failable (English): Capable of failing or becoming exhausted

Definitions

  1. Capable of failing or becoming exhausted

Ancestry of “failable”, step by step

failable traces back through two separate lines of ancestry.

via English able

StepLanguageWordMeaning
1EnglishableEasy to use; Suitable; competent; Liable to
2Middle Englishablecapable, expert, qualified, skilful, competent
3Old Frenchableable; capable
4Latinhabilisable to have/possess/maintain; having sufficient...
5Latin-ilis-ile
6Proto-Italic-elis
7Proto-Indo-European-elis
8Proto-Indo-European-lósForms agent nouns from verbal roots

via English fail

StepLanguageWordMeaning
1EnglishfailTo be unsuccessful; Not to achieve a particular...
2Middle Englishfailen
3Anglo-Normanfailliralternative infinitive of falir; to fail, err
4Vulgar Latinfallire
5Latinfallōto deceive, beguile, trick, cheat, delude, ensnare, disappoint
6Proto-Indo-Europeanǵʰwel-to bend; to lie, deceive
Every word from Proto-Indo-European -lós