communion vs kiddush

communion

noun
  • Holy Communion. 

  • A form of ecclesiastical unity between the Roman Church and another, so that the latter is considered part of the former. 

  • A joining together of minds or spirits; a mental connection. 

kiddush

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

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