Hi vs Yu

Hi

name
  • A male given name, a short form of Hiram 

Yu

name
  • Synonym of You; A surname. of Chinese origin. 

  • Synonym of Yoo; A surname. of Korean origin. 

  • A county of Yangquan, Shanxi, China. 

  • Synonym of Yuu; A unisex given name of Japanese origin. 

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