The word Embiter is misspelled against Embitter, a verb meaning "To make bitter or sad. See Imbitter."
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Embitter has double "tt" is mispronounced as "t"
Remember double 'TT' in between the strings embi & er which should not be misspelled with single 'T'
Wrong Spelling:  embi-t-er 
Correct Spelling:  embi-tt-er 
Find more wrongly spelled words of Embitter to spell it well.