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Roman coins (circa AD 253 to 305), with copper rust.


From aerūgō (rust of copper, verdigris) +‎ -ōsus.


  • (Classical) IPA(key): /ae̯.ruː.ɡiˈnoː.sus/, [ae̯.ruː.ɡɪˈnoː.sʊs]


aerūginōsus (feminine aerūginōsa, neuter aerūginōsum); first/second declension

  1. rusty, covered with copper rust
    • Seneca the Younger, De Brevitate Vitae 10.12
      Illum tu otiosum vocas qui Corinthia, paucorum furore pretiosa, anxia suptilitate concinnat et maiorem dierum partem in aeruginosis lamellis consumit?
      Would you say that that man is at leisure who arranges with finical care his Corinthian bronzes, that the mania of a few makes costly, and spends the greater part of each day upon rusty bits of copper? — J. Basore, 1932 translation [1]
    • Seneca the Elder, Controversiae, I.2.21
      [] ut Bassus Iulius qui dixit: ‘extra portam hanc virginem’ et: ‘ostende istam aeruginosam manum’ [...]
      [] like Bassus Julius, who said: ‘this maiden outside of the gate’ and ‘show that rusty hand of yours’ [...]


First/second declension.

Number Singular Plural
Case / Gender Masculine Feminine Neuter Masculine Feminine Neuter
nominative aerūginōsus aerūginōsa aerūginōsum aerūginōsī aerūginōsae aerūginōsa
genitive aerūginōsī aerūginōsae aerūginōsī aerūginōsōrum aerūginōsārum aerūginōsōrum
dative aerūginōsō aerūginōsō aerūginōsīs
accusative aerūginōsum aerūginōsam aerūginōsum aerūginōsōs aerūginōsās aerūginōsa
ablative aerūginōsō aerūginōsā aerūginōsō aerūginōsīs
vocative aerūginōse aerūginōsa aerūginōsum aerūginōsī aerūginōsae aerūginōsa

Related terms[edit]