Where does “thenness” come from?

thenness (English) comes from English then, from German Thon, from French thon, from Latin thunnus, from Ancient Greek θύννος, from Ancient Greek θύνω — to rush along.

thenness (English): The state or condition of being then, in the past...

Definitions

  1. The state or condition of being then, in the past...

Ancestry of “thenness”, step by step

thenness traces back through two separate lines of ancestry.

via English then

StepLanguageWordMeaning
1EnglishthenAt that time; Soon afterward; Next in order; in...
2GermanThontuna; Obsolete spelling of Ton which was...
3Frenchthontuna; an ugly woman
4Latinthunnustuna
5Ancient Greekθύννοςtuna
6Ancient Greekθύνωto rush along

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 Ancient Greek θύνω
thenness — Etymology, Origin & Word History | Etymology Explorer