Where does “downmost” come from?

downmost (English) comes from English most, from Middle English most, from Old English mǣst, from Proto-Germanic maistaz, from Proto-Germanic mikilaz, from Proto-Indo-European meǵa-.

downmost (English): Furthest down; located at the bottom of a system...

Definitions

  1. Furthest down; located at the bottom of a system...

Ancestry of “downmost”, step by step

downmost traces back through two separate lines of ancestry.

via English most

StepLanguageWordMeaning
1Englishmostsuperlative degree of much; superlative degree of...
2Middle Englishmost—
3Old Englishmǣstmost
4Proto-Germanicmaistazsuperlative degree of *mikilaz; most
5Proto-Germanicmikilazgreat, large; much, many
6Proto-Indo-Europeanmeǵa-—

via English Down

StepLanguageWordMeaning
1EnglishDownusually known as County Down
2Middle Englishdoundown
3Old Englishdūnhill, down; hill, dune; hill, mountain
4Proto-Germanic*dūnā—
5Proto-Celticdūnomstronghold, rampart
6Proto-Indo-Europeandʰewh₂-smoke; mist, haze
Every word from Proto-Indo-European meǵa- →
downmost — Etymology, Origin & Word History | Etymology Explorer