Masterfuly or Masterfully: How To spell?
The word Masterfuly is misspelled against Masterfully, an adverb meaning "In a masterful manner; imperiously."
Masterfully has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings masterfu & y which should not be misspelled with single 'L'
Wrong Spelling:  masterfu-l-y  Correct Spelling:  masterfu-ll-y 
Check more misspelled words of Masterfully to spell it correct.