Lewis & Short

Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.

Mărăthon, ōnis, f. (m., Mel. 2, 3, 6), = Μαραθών, a town (now Vrana) on the eastern coast of Attica, famed for the death of Icarus, the victory of Theseus over the Marathonian bull, and that of Miltiades over the Persians, Mel. 2, 3, 6; Cic. Off. 1, 18, 61; Nep. Milt. 4, 2; Just. 2, 15, 18: proelium apud Marathona, Plin. 35, 8, 34, § 57; Ov. M. 7, 433.
Hence,

  1. A. Mărătho-nĭus, a, um, adj., = Μαραθώνιος, of or belonging to Marathon, Marathonian: an etiam Theseus Marathonii tauri cornua comprehendit iratus? Cic. Tusc. 4, 22, 50: pugna, id. Att. 9, 10, 3.
    1. 2. Transf., Athenian: Marathonia virgo, i. e. Erigone, Stat. S. 5, 3, 74: hostis, Sil. 14, 650; Just. 4, 4; 5.
  2. B. Mărăthōnis, ĭdis, adj. f., = Μαραθωνίς, Marathonian: quercum Marathonida Theseus extulit, i. e. the spear with which he fought against the Marathonian bull, Stat. Th. 12, 730: Marathonide silvā, id. ib. 11, 644.