Frightfuly or Frightfully: How To spell?

The word Frightfuly is misspelled against Frightfully, an adverb meaning "In a frightful manner; to a frightful dagree."

Frightfully has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings frightfu & y which should not be misspelled with single 'L'
Wrong Spelling:  frightfu-l-y 
Correct Spelling:  frightfu-ll-y 
Check more misspelled words of Frightfully to spell it correct.