Where does “threadlessness” come from?

threadlessness (English) comes from English threadless, from English thread, from Middle English þred, from Old English þrǣd, from Proto-Germanic þrēduz, from Proto-Indo-European treh₁-tu-, from Proto-Indo-European terh₁- — to rub, turn; to drill, pierce.

threadlessness (English): Absence of a thread or threads

Definitions

  1. Absence of a thread or threads

Ancestry of “threadlessness”, step by step

threadlessness traces back through two separate lines of ancestry.

via English threadless

StepLanguageWordMeaning
1EnglishthreadlessWithout a thread
2EnglishthreadA long, thin and flexible form of material,...
3Middle Englishþredthread (of twine or fibre)
4Old Englishþrǣd
5Proto-Germanicþrēduzthread, twisted fibre
6Proto-Indo-Europeantreh₁-tu-
7Proto-Indo-Europeanterh₁-to rub, turn; to drill, pierce

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 terh₁-