happy as the day is long vs merry

happy as the day is long

merry

noun

  • An English wild cherry. 

adj

  • Festive and full of fun and laughter. 

  • Brisk 

  • Causing laughter, mirth, gladness, or delight. 

  • drunk; tipsy 

  • Jolly and full of high spirits; happy. 

How often have the words happy as the day is long and merry occurred in a corpus of books? (source: Google Ngram Viewer )