Where does “doorbuster” come from?

doorbuster (English) comes from English Buster, from German Büste, from French buste, from Italian busto, from Latin bustum, from Latin urere, from Latin uro, from Proto-Italic ouzō — to burn.

doorbuster (English): An unusually low sale price, typically offered by...

Definitions

  1. An unusually low sale price, typically offered by...

Ancestry of “doorbuster”, step by step

doorbuster traces back through two separate lines of ancestry.

via English Buster

StepLanguageWordMeaning
1EnglishBusterwho or something that bursts, breaks, or destroys a specified thing
2GermanBüstebust; dummy
3Frenchbustebust, torso; bust
4Italianbustotomb, grave; cadaver, corpse; bust
5LatinbustumA burial mound, tomb; A place for burning funeral...
6Latinureresecond-person singular future passive indicative...
7LatinuroI burn, consume, inflame; to rage, to ravage
8Proto-Italicouzō
9Proto-Indo-Europeanh₁ews-to burn

via English door

StepLanguageWordMeaning
1EnglishdoorA portal of entry into a building, room, or...
2Middle EnglishdoreA door or gate structure barring an entrance
3Old Englishdorabumblebee
4Proto-Germanicdurôbumblebee, humming insect
5Proto-Indo-Europeandʰer-to support; to hold
Every word from Proto-Indo-European h₁ews-Every word from Proto-Italic ouzōEvery word from Latin uro