Where does “sweatiness” come from?

sweatiness (English) comes from English sweaty, from Middle English swety, from English sweat, from Middle English sweten, from Old English swētan — to sweeten.

sweatiness (English): The state or condition of being sweaty

Definitions

  1. The state or condition of being sweaty

Ancestry of “sweatiness”, step by step

sweatiness traces back through two separate lines of ancestry.

via English sweaty

StepLanguageWordMeaning
1EnglishsweatyCovered in sweat; Having a tendency to sweat;...
2Middle Englishswety
3EnglishsweatFluid that exits the body through pores in the...
4Middle EnglishswetenTo make sweet, sweeten; To induce happiness; To...
5Old Englishswētanto sweeten

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 Old English swētanEvery word from Middle English swetenEvery word from English sweat