Dering or Derring: How To spell?
The word Dering is misspelled against Derring, an adjective meaning "Daring or warlike."
Derring has double "rr" is mispronounced as "r"Remember double 'RR' in between the strings de & ing which should not be misspelled with single 'R'
Wrong Spelling:  de-r-ing  Correct Spelling:  de-rr-ing 
Find more wrongly spelled words of Derring to spell it well.