Curstfuly or Curstfully: How To spell?
The word Curstfuly is misspelled against Curstfully, an adverb meaning "Peevishly; vexatiously; detestably."
Curstfully has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings curstfu & y which should not be misspelled with single 'L'
Wrong Spelling:  curstfu-l-y  Correct Spelling:  curstfu-ll-y 
Check more misspelled words of Curstfully to spell it correct.