Where does “suddenliness” come from?

suddenliness (English) comes from English suddenly, from English sudden, from Middle English sodeyn, from Anglo-Norman sodein, from Old French sodain, from Vulgar Latin subitanus, from Latin subitāneus, from Latin subitus — to go.

suddenliness (English): The state, quality, or condition of being sudden; suddenness; urgency

Definitions

  1. The state, quality, or condition of being sudden; suddenness; urgency

Ancestry of “suddenliness”, step by step

StepLanguageWordMeaning
1EnglishsuddenlyHappening quickly and with little or no warning;...
2EnglishsuddenHappening quickly and with little or no warning;...
3Middle EnglishsodeynSudden; happening or developing without buildup...
4Anglo-Normansodeinsudden; quickly with little or no warning
5Old Frenchsodain
6Vulgar Latinsubitanussudden
7Latinsubitāneussudden, unexpected
8Latinsubitusapproached; succeeded; occurred
9LatinsubeoI go under, come under; enter; I go up to,...
10Latinto go, to fare, to move (oneself) (any kind of animate or inanimate motion: walk, ride, sail, fly, etc.)
11Proto-ItalicI go
12Proto-Italicejō
13Proto-Indo-Europeanh₁éytito go, to be going
14Proto-Indo-Europeanh₁ey-to go
Every word from Proto-Indo-European h₁ey-