Geonym is a name of a geographical feature. The term covers everything, from names of continents to that of the smallest hamlets. Each toponym, hydronym, and so on is a geonym.
Thus, it could easilly be assumed, these apparatuses were preconceived endeavours, and wholly independent of a story-line into which they were subsequently braided.
is the schematic balance in the geographical distribution of the geonyms of any geographical concept (not unlike the schematic balance of the four cardinal points,
This schematic balance requires three or more geonyms to establish a realtionship with each other.
It seems particularly significant, that, in the Odyssey, the name of the IKARIAN MAIN or [IKAROPONTOS] is not a geonym included in the structure of a geographical paradigm for The Sea.
This fact obeys, certainly, to the utter moral decadence of the Wanderings of Odysseus, such that there is not even a name for the waters of the western tip of NERITON (Peljesac) which he has criss-crossed back and forth time-and-again.
The open sea to the west, beyond LEMNOS (Vis) and IMBROS (Bisevo), as distinguished from the sea channels among the islands close to the mainland in the east.