Hermeticaly or Hermetically: How To spell?
The word Hermeticaly is misspelled against Hermetically, an adverb meaning "By fusion, so as to form an air-tight closure."
Hermetically has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings hermetica & y which should not be misspelled with single 'L'
Wrong Spelling:  hermetica-l-y  Correct Spelling:  hermetica-ll-y 
Find more wrongly spelled words of Hermetically to spell it well.