Walian vs pommy

Walian

noun

  • A Welsh person. 

adj

  • Synonym of Welsh: of or relating to Wales. 

pommy

noun

  • A pom; a person of British descent, a Briton; an Englishman. 

adj

  • English; British. 

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