Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
Caurus or Cōrus, i, m. [cf. Goth. skūra, the north wind], the north-west wind; form Caurus, Gell. 2, 22, 12 and 22; Lucr. 6, 135; Vitr. 1, 6, 5; Verg. G. 3, 356; form Corus, Caes. B. G. 5, 7; Sen. Q. N. 5, 16, 5; Plin. 2, 47, 46, § 110.