Where does “prosiness” come from?

prosiness (English) comes from English prosy, from English prose, from French prose, from Latin prōsa, from Latin prorsus, from Latin prō, from Latin ratus, from Latin rēōr — to fit, to fix, to put together.

prosiness (English): The quality or state of being prosy; tediousness

Definitions

  1. The quality or state of being prosy; tediousness

Ancestry of “prosiness”, step by step

prosiness traces back through two separate lines of ancestry.

via English prosy

StepLanguageWordMeaning
1EnglishprosyUnpoetic; dull and unimaginative; Behaving in a...
2EnglishproseLanguage, particularly written language, not...
3Frenchproseprose; inflection of proser: ##...
4Latinprōsaprose
5Latinprorsusstraightforward, right onwards, straight, direct;...
6Latinprōfor
7Latinratusconsidered, having been considered; established,...
8Latinrēōrto reckon, calculate
9Proto-Italicrēōrto reckon, to calculate; to think, to deem, to...
10Proto-Indo-Europeanh₂reh₁-to think, reason; to arrange
11Proto-Indo-Europeanh₂er-to fit, to fix, to put together

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 h₂er-