Laze vs Shuitianhua

Laze

name
  • A language of the Naish subbranch of the Naic group of languages, spoken in Muli Tibetan Autonomous County western Sichuan, China. 

Shuitianhua

name
  • Synonym of Laze 

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