Where does “rainscreen” come from?

rainscreen (English) comes from English screen, from Middle English scren, from Anglo-Norman escren, from Old French escren, from Middle Dutch scherm, from Old Dutch skirm, from Proto-West Germanic skirmi, from Proto-Germanic skirmiz — to caw, crow.

rainscreen (English): Synonym of rainshade; the exterior weather-facing...

Definitions

  1. Synonym of rainshade; the exterior weather-facing...

Ancestry of “rainscreen”, step by step

rainscreen traces back through two separate lines of ancestry.

via English screen

StepLanguageWordMeaning
1EnglishscreenA physical divider intended to block an area from...
2Middle Englishscren
3Anglo-Normanescrenfirescreen, the tester of a bed; Alternative form...
4Old FrenchescrenAlternative form of escran
5Middle Dutchschermprotective screen; protection, cover
6Old Dutchskirmprotection
7Proto-West Germanicskirmifur, hide, pelt; covering, shelter, screen
8Proto-Germanicskirmizfur, hide, pelt; covering, shelter, screen
9Proto-Indo-Europeansḱer-to caw, crow

via English rain

StepLanguageWordMeaning
1EnglishrainCondensed water falling from a cloud; Any matter...
2Middle Englishreynrain water falling from a cloud
3Old Englishreġnrain
4Proto-West Germanicregnrain
5Proto-Germanicregnąrain
6Proto-Indo-EuropeanHreǵ-to flow
Every word from Proto-Indo-European sḱer-