grump vs tummyache

grump

noun

  • A grumpy mood. 

  • A habitually grumpy or complaining person. 

verb

  • To complain. 

  • To be grumpy. 

tummyache

noun

  • Any pain in the stomach or abdomen. 

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