Where does “unvaluableness” come from?

unvaluableness (English) comes from English unvaluable, from English valuable, from English value, from Middle English valew, from Old French value, from Old French valoir, from Latin valeō, from Proto-Italic walēō — to rule; strong, powerful; hair; wool.

Ancestry of “unvaluableness”, step by step

unvaluableness traces back through two separate lines of ancestry.

via English unvaluable

StepLanguageWordMeaning
1EnglishunvaluableInvaluable; beyond price; Not valuable; having...
2EnglishvaluableHaving a great value; Estimable; deserving...
3EnglishvalueThe quality that renders something desirable or...
4Middle Englishvalew
5Old Frenchvalue
6Old Frenchvaloirto have value; to be worth
7Latinvaleōto have strength, influence, power; to avail
8Proto-Italicwalēōto be strong
9Proto-Indo-Europeanh₂wl̥h₁éh₁yeti
10Proto-Indo-Europeanh₂welh₁-to rule; strong, powerful; hair; wool

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 h₂welh₁-Every word from Proto-Indo-European h₂wl̥h₁éh₁yetiEvery word from Proto-Italic walēō