Where does “underscreened” come from?

underscreened (English) comes from English under, from Middle English under, from Old English under, from Proto-Germanic under, from Proto-Indo-European h₁entér, from Proto-Indo-European h₁en — in; in, inside.

underscreened (English): Insufficiently screened

Definitions

  1. Insufficiently screened

Ancestry of “underscreened”, step by step

underscreened traces back through two separate lines of ancestry.

via English under

StepLanguageWordMeaning
1EnglishunderIn or at a lower level than; As a subject of;...
2Middle Englishunderunder
3Old Englishunderunder, beneath
4Proto-Germanicunderamong, between; under, beneath; under
5Proto-Indo-Europeanh₁entérbetween
6Proto-Indo-Europeanh₁enin; in, inside

via English screened

StepLanguageWordMeaning
1Englishscreenedsimple past tense and past participle of screen
Every word from Proto-Indo-European h₁enEvery word from Proto-Indo-European h₁entérEvery word from Proto-Germanic under