Where does “unendable” come from?

unendable (English) comes from English endable, 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 — Forms agent nouns from verbal roots.

unendable (English): Impossible to end; which cannot be ended; interminable

Definitions

  1. Impossible to end; which cannot be ended; interminable

Ancestry of “unendable”, step by step

StepLanguageWordMeaning
1EnglishendableThat may be ended; terminable
2EnglishableEasy to use; Suitable; competent; Liable to
3Middle Englishablecapable, expert, qualified, skilful, competent
4Old Frenchableable; capable
5Latinhabilisable to have/possess/maintain; having sufficient...
6Latin-ilis-ile
7Proto-Italic-elis
8Proto-Indo-European-elis
9Proto-Indo-European-lósForms agent nouns from verbal roots
Every word from Proto-Indo-European -lósEvery word from Latin -ilisEvery word from Latin habilis