Chink vs chinky

Chink

noun
  • A person of perceived Chinese ethnicity. 

adj
  • Chinese, or perceived to be Chinese. 

chinky

noun
  • A Chinese person. 

  • A meal of Chinese food. 

  • A Chinese takeaway restaurant. 

  • A person from Northeast India. 

adj
  • Possessing attributes of, or similar to, a Chinese person or Chinese style or culture. 

  • Full of chinks, laden with small cracks or openings. 

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