Gladening or Gladdening: How To spell?
The word Gladening is misspelled against Gladdening, which is present continuous of "Gladden"
Gladdening has double "dd" is mispronounced as "d"Remember double 'DD' in between the strings Gla & ening which should not be misspelled with single 'D'
Wrong Spelling:  Gla-d-ening  Correct Spelling:  Gla-dd-ening 
Find more wrongly spelled words of Gladdening to spell it well.