The word Interegency is misspelled against Interregency, a noun meaning "An interregnum."
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Interregency has double "rr" is mispronounced as "r"
Remember double 'RR' in between the strings inte & egency which should not be misspelled with single 'R'
Wrong Spelling:  inte-r-egency 
Correct Spelling:  inte-rr-egency 
Explore spell check of Interregency to spell without errors.