Quasia or Quassia: How To spell?
The word Quasia is misspelled against Quassia, a noun meaning "The wood of several tropical American trees of the order Simarubeae, as Quassia amara, Picraena excelsa, and Simaruba amara. It is intensely bitter, and is used in medicine and sometimes as a substitute for hops in making beer."
Quassia has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings qua & ia which should not be misspelled with single 'S'
Wrong Spelling:  qua-s-ia  Correct Spelling:  qua-ss-ia 
Check more misspelled words of Quassia to spell it correct.