Welshy vs the Cymry

Welshy

noun
  • Synonym of Walian: a Welshman or Welshwoman, a Welsh person. 

adj
  • Synonym of Welsh: of or related to Wales, similar to Welsh people or things. 

the Cymry

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