She is described in the anonymous collection of Greek stories known in Latin as Tractatus de mulieribus claris in dello.
[2] According to this text source, her people, suffering from scarcity and needing to flee their land, offered to obey anyone willing to lead them.
When no man accepted the offer, Onomaris pooled their resources and led the emigration into southeastern Europe.
[3][4] Onomaris crossed the Ister and ruled over the land after defeating the local inhabitants in battle.
[6] The name Onomaris sounds like a Greek word[7] but it appears to be a compound, with the second element “-maris” reflecting a Celtic root that meant “great”.