Where does “overmattress” come from?

overmattress (English) comes from English over, from Middle English over, from Old English ōfer, from Proto-West Germanic obar, from Proto-Germanic uber, from Proto-Indo-European upér, from Proto-Indo-European upó, from Proto-Indo-European h₃ewp-.

overmattress (English): A mattress that goes atop the primary bed mattress; a supplemental mattress

Definitions

  1. A mattress that goes atop the primary bed mattress; a supplemental mattress

Ancestry of “overmattress”, step by step

overmattress traces back through two separate lines of ancestry.

via English over

StepLanguageWordMeaning
1EnglishoverDiscontinued; ended or concluded; Thoroughly;...
2Middle Englishoverriverbank, seashore, brink
3Old Englishōferriverbank, seashore, brink, edge, margin, border
4Proto-West Germanicobarover, above
5Proto-Germanicuberover; over, above
6Proto-Indo-Europeanupérabove; over
7Proto-Indo-Europeanupóunder, below
8Proto-Indo-Europeanh₃ewp-

via English mattress

StepLanguageWordMeaning
1EnglishmattressA pad on which a person can recline and sleep,...
2Middle EnglishmaterasA mattress; a pad or cushioning for sleeping...
3Old Frenchmatrasmattress
4Arabicمَطْرَحcarpet, place where something is thrown; place...
5Arabicطَرَحَreject, deduct; to throw
Every word from Proto-Indo-European h₃ewp-Every word from Proto-Indo-European upóEvery word from Proto-Indo-European upér
overmattress — Etymology, Origin & Word History | Etymology Explorer