Where does “fourthness” come from?

fourthness (English) comes from English Fourth, from Middle English fourthe, from Middle English ferthe, from Old English fēorþa, from Proto-West Germanic feurþō, from Proto-Germanic fedurþô — fourth.

fourthness (English): The quality of being or coming fourth

Definitions

  1. The quality of being or coming fourth

Ancestry of “fourthness”, step by step

fourthness traces back through two separate lines of ancestry.

via English Fourth

StepLanguageWordMeaning
1EnglishFourthThe Fourth of July
2Middle EnglishfourtheAlternative form of ferthe
3Middle Englishferthefourth; One of four equal parts of a whole; a...
4Old Englishfēorþafourth
5Proto-West Germanicfeurþōfourth
6Proto-Germanicfedurþôfourth

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-Germanic fedurþô