Where does “teardown” come from?

teardown (English) comes from English down, from Middle English doune, from Old English dūne, from Old English adūne, from Old English ofdūne, from Old English dūn, from Proto-Germanic *dūnā, from Proto-Celtic dūnom — smoke; mist, haze.

teardown (English): A well-maintained structure purchased and torn...

Definitions

  1. A well-maintained structure purchased and torn...

Ancestry of “teardown”, step by step

teardown traces back through two separate lines of ancestry.

via English down

StepLanguageWordMeaning
1EnglishdownFrom a higher position to a lower one; downwards;...
2Middle Englishdoune
3Old Englishdūnehill; down, downward
4Old Englishadūne
5Old Englishofdūneoff the hill; down
6Old Englishdūnhill, down; hill, dune; hill, mountain
7Proto-Germanic*dūnā
8Proto-Celticdūnomstronghold, rampart
9Proto-Indo-Europeandʰewh₂-smoke; mist, haze

via English tear

StepLanguageWordMeaning
1EnglishtearTo rend by holding or restraining in two places...
2Middle EnglishtearAlternative form of tere
3Old Englishteagor
4Proto-West Germanictah(h)rtear
5Proto-Germanictahrątear
6Proto-Indo-Europeandáḱru-tears; tear
7Proto-Indo-Europeandr̥ḱ-h₂eḱru-eye bitter
Every word from Proto-Indo-European dʰewh₂-Every word from Proto-Celtic dūnomEvery word from Proto-Germanic *dūnā