Where does “ungainfulness” come from?

ungainfulness (English) comes from English ungainful, from English gainful, from English gain, from Middle French gain, from Old French gaaing, from Old French gaaignier, from Vulgar Latin *wadaniāre, from English unspecified — not, un-.

ungainfulness (English): The quality of being ungainful

Definitions

  1. The quality of being ungainful

Ancestry of “ungainfulness”, step by step

ungainfulness traces back through two separate lines of ancestry.

via English ungainful

StepLanguageWordMeaning
1EnglishungainfulNot gainful
2EnglishgainfulContrary; Disposed to taking advantage of;...
3EnglishgainTo acquire possession of; To have or receive...
4Middle Frenchgainincome
5Old Frenchgaainggain
6Old FrenchgaaignierAlternative form of gaigner; to earn, gain,...
7Vulgar Latin*wadaniāre
8EnglishunspecifiedNot specified; not thoroughly explained or...
9EnglishUn-not
10Middle Englishun-
11Old Englishun-negation or absence of: un-, non-; bad; forms...
12Proto-West Germanicun-not, un-
13Proto-Germanicun-not, un-
14Proto-Indo-Europeann̥-not, un-

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 n̥-Every word from English Un-Every word from Old English un-