Gibostity or Gibbostity: How To spell?
The word Gibostity is misspelled against Gibbostity, a noun meaning "The state of being gibbous or gibbose; gibbousness."
Gibbostity has double "bb" is mispronounced as "b"Remember double 'BB' in between the strings Gi & ostity which should not be misspelled with single 'B'
Wrong Spelling:  Gi-b-ostity  Correct Spelling:  Gi-bb-ostity 
Find more incorrect spellings of Gibbostity to spell right way.