doolally vs lunatic

doolally

adj

  • Eccentric; insane, mad. 

  • Carried away by enjoyment, excitement, etc. 

lunatic

adj

  • Crazed, mad, insane, demented. 

noun

  • An insane person. 

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