dozy vs half-asleep

dozy

adj

  • Quite sleepy or tired. 

  • Decaying, rotten, spongy. 

  • Intellectually slow. 

half-asleep

adj

  • Showing signs of being asleep or very sleepy, as not demonstrating full energy or attention. 

How often have the words dozy and half-asleep occurred in a corpus of books? (source: Google Ngram Viewer )