Where does “thwartness” come from?

thwartness (English) comes from English thwart, from Middle English þwerte, from Old Norse þvert, from Old Norse þverr, from Proto-Germanic þwerhaz, from Proto-Germanic þerh-, from Proto-Indo-European terkʷ- — to turn, spin.

thwartness (English): The quality or state of being thwart; obliquity;...

Definitions

  1. The quality or state of being thwart; obliquity;...

Ancestry of “thwartness”, step by step

thwartness traces back through two separate lines of ancestry.

via English thwart

StepLanguageWordMeaning
1EnglishthwartPlaced or situated across something else; cross,...
2Middle Englishþwerte
3Old Norseþvertacross, athwart
4Old Norseþverrathwart, transverse; adverse, contrary; cross,...
5Proto-Germanicþwerhazcross, adverse
6Proto-Germanicþerh-
7Proto-Indo-Europeanterkʷ-to turn, spin

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 terkʷ-Every word from Proto-Germanic þerh-Every word from Proto-Germanic þwerhaz