Pestilentialy or Pestilentially: How To spell?
The word Pestilentialy is misspelled against Pestilentially, an adverb meaning "Pestilently."
Pestilentially has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings pestilentia & y which should not be misspelled with single 'L'
Wrong Spelling:  pestilentia-l-y  Correct Spelling:  pestilentia-ll-y 
Find more wrongly spelled words of Pestilentially to spell it well.