The word Preposesed is misspelled against Prepossessed, which is past tense of "Prepossess"
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Prepossessed has double 'ss' twice appearing mispronounced as 's'
Remember double 'SS' appears twice in this word which should not be misspelled with single 'S'
Wrong Spelling:  prepo-s-e-s-ed 
Correct Spelling:  prepo-ss-e-ss-ed 
Find more incorrect spellings of Prepossessed to spell right way.