Misarangement or Misarrangement: How To spell?
The word Misarangement is misspelled against Misarrangement, a noun meaning "Wrong arrangement."
Misarrangement has double "rr" is mispronounced as "r"Remember double 'RR' in between the strings misa & angement which should not be misspelled with single 'R'
Wrong Spelling:  misa-r-angement  Correct Spelling:  misa-rr-angement 
Find more wrongly spelled words of Misarrangement to spell it well.