a bit vs ish

a bit

adv

  • Slightly; rather. 

  • To a small extent; in a small amount. 

  • Very. 

  • A lot. 

ish

adv

  • somewhat, reasonably, fairly 

  • about, approximately 

noun

  • The letter which stands for the sh sound /ʃ/ in Pitman shorthand. 

  • Shit. 

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