Where does “impotentness” come from?

impotentness (English) comes from English impotent, from Old French impotent, from Latin impotēns, from Latin potēns, from Latin posse, from Latin potis, from Proto-Italic potis, from Proto-Indo-European pótis — to drink.

impotentness (English): The quality of being impotent

Definitions

  1. The quality of being impotent

Ancestry of “impotentness”, step by step

impotentness traces back through two separate lines of ancestry.

via English impotent

StepLanguageWordMeaning
1Englishimpotentlacking physical strength or vigor; weak; lacking...
2Old Frenchimpotent—
3LatinimpotēnsPowerless, weak, feeble, impotent, helpless, puny
4Latinpotēnsbeing able (to), able; potent, mighty, strong, powerful
5Latinpossepresent active infinitive of possum  "to be able...
6Latinpotisable, capable, possible
7Proto-Italicpotismaster, in control of
8Proto-Indo-Europeanpótismaster, ruler; husband
9Proto-Indo-Europeanph₃tis—
10Proto-Indo-Europeanpeh₃-to drink

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 peh₃- →Every word from Proto-Indo-European ph₃tis →Every word from Proto-Indo-European pótis →