Almost
来自Big Physics
Old English æl mǣst ‘for the most part’ (see all, most).
wiktionary
From Middle English[Term?], from Old English eallmǣst(“nearly all, almost, for the most part”), equivalent to al-(“all”) + most.
etymonline
almost (adv.)
Old English eallmæst "nearly all, for the most part," literally "mostly all;" see all + most. Modern form is from 15c. The original sense is now typically expressed by almost all; sense of "very nearly, all but" is from c. 1200.