a bit vs middlingly

a bit

adv

  • Slightly; rather. 

  • To a small extent; in a small amount. 

  • Very. 

  • A lot. 

middlingly

adv

  • In a middling manner; averagely, moderately. 

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