Biterwood or Bitterwood: How To spell?
The word Biterwood is misspelled against Bitterwood, a noun meaning "A West Indian tree (Picraena excelsa) from the wood of which the bitter drug Jamaica quassia is obtained."
Bitterwood has double "tt" is mispronounced as "t"Remember double 'TT' in between the strings bi & erwood which should not be misspelled with single 'T'
Wrong Spelling:  bi-t-erwood  Correct Spelling:  bi-tt-erwood 
Find more incorrect spellings of Bitterwood to spell right way.