Where does “vertiginousness” come from?

vertiginousness (English) comes from English vertiginous, from French vertigineux, from Latin vertiginōsus, from Latin vertīgō, from Latin -igo, from Proto-Italic agō, from Proto-Indo-European h₂éǵeti, from Proto-Indo-European h₂eǵ- — to drive.

vertiginousness (English): The quality of being vertiginous

Definitions

  1. The quality of being vertiginous

Ancestry of “vertiginousness”, step by step

vertiginousness traces back through two separate lines of ancestry.

via English vertiginous

StepLanguageWordMeaning
1EnglishvertiginousHaving an aspect of great depth, drawing the eye...
2Frenchvertigineuxvertiginous; dizzy
3LatinvertiginōsusSuffering from vertigo or giddiness
4Latinvertīgōgyration, giddiness, dizziness
5Latin-igoEnlargement of -ō; Suffixed to nouns and to...
6Proto-Italicagōdrive; push, impel; do, act
7Proto-Indo-Europeanh₂éǵetito be driving
8Proto-Indo-Europeanh₂eǵ-to drive

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 h₂eǵ-