Where does “downthread” come from?

downthread (English) comes 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.

downthread (English): Later, or hierarchically lower, in a thread of discussion

Definitions

  1. Later, or hierarchically lower, in a thread of discussion

Ancestry of “downthread”, step by step

downthread traces back through two separate lines of ancestry.

via English thread

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

via English Down

StepLanguageWordMeaning
1EnglishDownusually known as County Down
2Middle Englishdoundown
3Old Englishdūnhill, down; hill, dune; hill, mountain
4Proto-Germanic*dūnā
5Proto-Celticdūnomstronghold, rampart
6Proto-Indo-Europeandʰewh₂-smoke; mist, haze
Every word from Proto-Indo-European terh₁-Every word from Proto-Indo-European treh₁-tu-Every word from Proto-Germanic þrēduz