Iritancy or Irritancy: How To spell?
The word Iritancy is misspelled against Irritancy, meaning "The quality of producing vexation."
Irritancy has double "rr" is mispronounced as "r"Remember double 'RR' in between the strings i & itancy which should not be misspelled with single 'R'
Wrong Spelling:  i-r-itancy  Correct Spelling:  i-rr-itancy 
Find more wrongly spelled words of Irritancy to spell it well.