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