Where does “unhelpableness” come from?

unhelpableness (English) comes from English unhelpable, from English helpable, from English able, from Middle English able, from Old French able, from Latin habilis, from Latin -ilis, from Proto-Italic -elis — Forms agent nouns from verbal roots.

unhelpableness (English): The quality of being unhelpable

Definitions

  1. The quality of being unhelpable

Ancestry of “unhelpableness”, step by step

unhelpableness traces back through two separate lines of ancestry.

via English unhelpable

StepLanguageWordMeaning
1EnglishunhelpableIncapable of being helped
2EnglishhelpableCapable of being helped
3EnglishableEasy to use; Suitable; competent; Liable to
4Middle Englishablecapable, expert, qualified, skilful, competent
5Old Frenchableable; capable
6Latinhabilisable to have/possess/maintain; having sufficient...
7Latin-ilis-ile
8Proto-Italic-elis
9Proto-Indo-European-elis
10Proto-Indo-European-lósForms agent nouns from verbal roots

via English Ness

StepLanguageWordMeaning
1EnglishNessAn Ulster princess and the mother of Conchobar mac Nessa and Findchoem in the Ulster Cycle of Irish mythology. Daughter of Eochaid Sálbuide. Also the mother of Cormac Cond Longas by incest with Conchobar mac Nessa
2Middle Englishnesse
3Old Englishnæsnot, not at all; not; first/third-person singular...
4Proto-Germanicnasjąfoothill; headland; cape
5Proto-Indo-Europeannéh₂snose
Every word from Proto-Indo-European -lósEvery word from Latin -ilisEvery word from Latin habilis