The word Sirocos is misspelled against Siroccos, which is plural of "Sirocco"
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Siroccos has double "cc" is mispronounced as "c"
Remember double 'CC' in between the strings Siro & os which should not be misspelled with single 'C'
Wrong Spelling:  Siro-c-os 
Correct Spelling:  Siro-cc-os 
Find more incorrect spellings of Siroccos to spell right way.