plural noun
su·​res | \ ˈsüˌrās\

Definition of sures 

: southerly winds on the coasts of Chile and Peru

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First Known Use of sures

1758, in the meaning defined above

History and Etymology for sures

Spanish, plural of sur south, of Germanic origin; akin to Old English sūth south

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The first known use of sures was in 1758

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