especially vs in other words

especially

adv
  • Used to place greater emphasis upon someone or something. 

  • In a special manner; specially. 

  • Particularly; to a greater extent than is normal. 

in other words

adv
  • used to introduce an explanation, simplification, or clarification 

prep
  • Stated or interpreted another way; Used to introduce an explanation, simplification, or clarification. 

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