Imarcescibly or Immarcescibly: How To spell?
The word Imarcescibly is misspelled against Immarcescibly, an adverb meaning "Unfadingly."
Immarcescibly has double "mm" is mispronounced as "m"Remember double 'MM' in between the strings i & arcescibly which should not be misspelled with single 'M'
Wrong Spelling:  i-m-arcescibly  Correct Spelling:  i-mm-arcescibly 
Find more wrongly spelled words of Immarcescibly to spell it well.