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