English
screenwash
From screen + wash.
Proto-Indo-European *(s)ker- ‘to cut off, sever’
…
Old Dutch skirm
Middle Dutch scherm
Anglo-Norman escren ‘firescreen’
Middle English scren
English screen
Proto-Indo-European *wed- ‘wet’
Proto-Germanic *waskaną ‘to wash’
Proto-West Germanic *waskan ‘to wash’
Old English wascan ‘to wash’
Middle English wasshen ‘to wash’
English wash
Today it means
noun A fluid used to clean the windscreen of a motor vehicle; windshield washer fluid.
Language periods are conventional ranges, not dates for this word.
Etymograph / screenwash