Where does “broombush” come from?

broombush (English) comes from English Bush, from Middle English bush, from Old English busċ, from Latin bosca, from Late Latin busca, from Proto-West Germanic busk, from Proto-Germanic buskaz, from Proto-Indo-European bʰuH- — to become, grow, appear.

Ancestry of “broombush”, step by step

broombush traces back through two separate lines of ancestry.

via English Bush

StepLanguageWordMeaning
1EnglishBushA place name
2Middle Englishbushgrove, wood; thicket, underbrush; bush; branch of...
3Old Englishbusċ
4Latinboscafirewood
5Late Latinbusca
6Proto-West Germanicbuskbush, thicket
7Proto-Germanicbuskazbush; thicket
8Proto-Indo-EuropeanbʰuH-to become, grow, appear

via English broom

StepLanguageWordMeaning
1EnglishbroomA domestic utensil with fibers bound together at...
2Middle EnglishbromBroom shrub of the family
3Old Englishbrōmbrushwood; broom; broom shrub
4Proto-West Germanic*brāmblackberry, bramble
5Proto-Indo-Europeanbʰrem-to make noise
6Proto-Indo-Europeanbʰer-to bear, carry
Every word from Proto-Indo-European bʰuH-
broombush — Etymology, Origin & Word History | Etymology Explorer