The word Fatiness is misspelled against Fattiness, a noun meaning "State or quality of being fatty."
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Fattiness has double "tt" is mispronounced as "t"
Remember double 'TT' in between the strings fa & iness which should not be misspelled with single 'T'
Wrong Spelling:  fa-t-iness 
Correct Spelling:  fa-tt-iness 
Find more wrongly spelled words of Fattiness to spell it well.