The word Tresy is misspelled against Tressy, an adjective meaning "Abounding in tresses."
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Tressy has double "ss" is mispronounced as "s"
Remember double 'SS' in between the strings tre & y which should not be misspelled with single 'S'
Wrong Spelling:  tre-s-y 
Correct Spelling:  tre-ss-y 
Explore spell check of Tressy to spell without errors.