Μαραθώνιος
Could not find Μαραθωνίων in Logeion dictionaries.
Μαραθωνίων Proper-name adjective: feminine genitive plural, Proper-name adjective: masculine genitive plural, Proper-name adjective: neuter genitive plural of Μαραθώνιος
Μαραθώνιος, α, ον [ᾰᾰ] de Marathon, Eschl. fr. Ep. 4 ; Plut. Thes. 14, etc.
Étym. Μαραθών.