What rhymes with circus

versus, lucas, circus, fergus, halicarnassus, platypus, antivirus, paracelsus, moluccas, aspergillus, gluteus, cirrocumulus, fucus, excursus, urus, thyrsus, redivivus, floccus, viscus, conatus, hamulus, cercus, cumulostratus, turquois, butyraceous, propositus, fractocumulus