The word Calosities is misspelled against Callosities, which is plural of "Callosity"
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Callosities has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings ca & osities which should not be misspelled with single 'L'
Wrong Spelling:  ca-l-osities 
Correct Spelling:  ca-ll-osities 
Find more incorrect spellings of Callosities to spell right way.