a bit vs summat

a bit

adv

  • Slightly; rather. 

  • To a small extent; in a small amount. 

  • Very. 

  • A lot. 

summat

adv

  • somewhat, something (to a degree) 

pron

  • Something. 

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