Where does “altitudinousness” come from?

altitudinousness (English) comes from English altitudinous, from Latin altitūdō, from Latin altus, from Proto-Italic altos, from Proto-Indo-European h₂eltós, from Proto-Indo-European h₂él- — to grow, nourish.

altitudinousness (English): the quality of being very tall, high, or lofty

Definitions

  1. the quality of being very tall, high, or lofty

Ancestry of “altitudinousness”, step by step

altitudinousness traces back through two separate lines of ancestry.

via English altitudinous

StepLanguageWordMeaning
1EnglishaltitudinousLofty; very high
2Latinaltitūdōheight (distance from bottom to top)
3Latinaltushigh, tall; deep; profound
4Proto-Italicaltos—
5Proto-Indo-Europeanh₂eltós—
6Proto-Indo-Europeanh₂él-to grow, nourish

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 h₂él- →Every word from Proto-Indo-European h₂eltós →Every word from Proto-Italic altos →