The word Rosted is misspelled against Roosted, which is past tense of "Roost"
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Roosted has double "oo" is mispronounced as "o"
Remember double 'OO' in between the strings r & sted which should not be misspelled with single 'O'
Wrong Spelling:  r-o-sted 
Correct Spelling:  r-oo-sted 
Find more incorrect spellings of Roosted to spell right way.