Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
Smintheus or Zmin- (dissyl.), ĕi, m., = Σμινθεύς, an epithet of Apollo (from the Cretan σμίνθος, mouse, i. e. the mousekiller; or, as Aristarchus asserts, from Smintha (Σμίνθη), a town in the Troad, the Sminthean, Lact. 1, 7, 9; Ov. F. 6, 425; acc. Sminthea, id. M. 12, 585.
Hence,