Chaselas or Chasselas: How To spell?
The word Chaselas is misspelled against Chasselas, a noun meaning "A white grape, esteemed for the table."
Chasselas has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings cha & elas which should not be misspelled with single 'S'
Wrong Spelling:  cha-s-elas  Correct Spelling:  cha-ss-elas 
Explore spell check of Chasselas to spell without errors.