*ka/tlos, a name of a family of the plebeian Lutatia or Luctatia gens, etymologically connected with the words Cato, Catus, and indicating shrewdness, sagacity, caution, or the like.
William Smith. A Dictionary of Greek and Roman biography and mythology. London. John Murray: printed by Spottiswoode and Co., New-Street Square and Parliament Street. In the article on Soranus, we find: "at this present time (1848)" and this date seems to reflect the dates of works cited. 1873 - probably the printing date.