ab vs abdo

ab

noun
  • abdominal muscle. 

  • An abscess caused by injecting an illegal drug, usually heroin. 

  • The early stages of; the beginning process; the start. 

verb
  • To abseil. 

abdo

noun
  • Abdomen. 

adj
  • Abdominal. 

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