Where does “undersill” come from?

undersill (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.

undersill (English): Beneath a sill

Definitions

  1. Beneath a sill

Ancestry of “undersill”, step by step

undersill 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 sill

StepLanguageWordMeaning
1EnglishsillA horizontal slat which forms the base of a...
2Middle Englishsille—
3Old Englishsylla beam that serves as a foundation or support,...
4Proto-Germanicsulībalk, bar, threshold, sill
5Proto-Indo-Europeansēl-to calm, quiet, be favourable
Every word from Proto-Indo-European h₁en →