kiddush vs thank-you

kiddush

noun
  • A blessing recited over wine or grape juice in commemoration of the sanctity of the Shabbat or other Jewish holy day. 

thank-you

noun
  • An expression of gratitude. 

  • That expresses thanks. 

How often have the words kiddush and thank-you occurred in a corpus of books? (source: Google Ngram Viewer )