Fierines or Fieriness: How To spell?
The word Fierines is misspelled against Fieriness, a noun meaning "The quality of being fiery; heat; acrimony; irritability; as, a fieriness of temper."
Fieriness has double 'ss' in the end mispronounced as 's'Remember double 'SS' appears in the end of this word which should not be misspelled with single 'S'
Wrong Spelling:  fierine-s  Correct Spelling:  fierine-ss 
Find more wrongly spelled words of Fieriness to spell it well.