Marathenus
Could not find Maratheno in Logeion dictionaries.
Maratheno Proper-name adjective: neuter dative singular, Proper-name adjective: masculine ablative singular, Proper-name adjective: masculine dative singular, Proper-name adjective: neuter ablative singular of Marathenus
Mărăthēnus, a, um, v. Marathos, II.
Mărăthēnus, a, um, de Marathos : Cic. Br. 100.