Demoniacaly or Demoniacally: How To spell?
The word Demoniacaly is misspelled against Demoniacally, an adverb meaning "In a demoniacal manner."
Demoniacally has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings demoniaca & y which should not be misspelled with single 'L'
Wrong Spelling:  demoniaca-l-y  Correct Spelling:  demoniaca-ll-y 
Find more incorrect spellings of Demoniacally to spell right way.