The word Dering is misspelled against Derring, an adjective meaning "Daring or warlike."
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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.