Interexes or Interrexes: How To spell?

The word Interexes is misspelled against Interrexes, which is plural of "Interrex"

Interrexes has double "rr" is mispronounced as "r"
Remember double 'RR' in between the strings inte & exes which should not be misspelled with single 'R'
Wrong Spelling:  inte-r-exes 
Correct Spelling:  inte-rr-exes 
Explore spell check of Interrexes to spell without errors.

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