The word Simered is misspelled against Simmered, which is past tense of "Simmer"
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Simmered has double "mm" is mispronounced as "m"
Remember double 'MM' in between the strings si & ered which should not be misspelled with single 'M'
Wrong Spelling:  si-m-ered 
Correct Spelling:  si-mm-ered 
Find more wrongly spelled words of Simmered to spell it well.