Monumentaly or Monumentally: How To spell?
The word Monumentaly is misspelled against Monumentally, an adverb meaning "By means of monuments."
Monumentally has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings monumenta & y which should not be misspelled with single 'L'
Wrong Spelling:  monumenta-l-y  Correct Spelling:  monumenta-ll-y 
Check more misspelled words of Monumentally to spell it correct.