The word Overigorous is misspelled against Overrigorous, an adjective meaning "Too rigorous; harsh."
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Overrigorous has double "rr" is mispronounced as "r"
Remember double 'RR' in between the strings ove & igorous which should not be misspelled with single 'R'
Wrong Spelling:  ove-r-igorous 
Correct Spelling:  ove-rr-igorous 
Check more misspelled words of Overrigorous to spell it correct.