all but vs most

all but

adv

  • Very nearly; everything short of. 

most

adv

  • Almost. 

  • To a great extent or degree; highly; very. 

  • Forms the superlative of many adjectives. 

noun

  • A record-setting amount. 

  • The greatest amount. 

  • The greater part. 

pron

  • The greater part of a group, especially a group of people. 

How often have the words all but and most occurred in a corpus of books? (source: Google Ngram Viewer )