ποταμός

ποταμός (potamos, "po-tah-MOSS"), the river, is above all the historian's landmark in this record: 1,005 occurrences across 91 works, with the Histories alone holding 323 of them — nearly a third. Then come Xenophon's Anabasis (94), the Iliad (80), and the History (59); the Odyssey adds 33 and the Septuagint's Ezechiel (the Greek book of Ezekiel) 27. For the Greek historian a river is where geography becomes narrative — the boundary crossed, the army halted, the empire measured by the waters it holds.

LSJ (Liddell–Scott–Jones, 1940) glosses it simply "river, stream," but its note reaches back to Homer: Ὠκεανός (Okeanos, "Ocean") at Iliad 21.196, the one "from whom all rivers" flow. The same entry preserves two of the standing epithets Greek gave its waters — διιπετής (diipetes, "heaven-fallen," fallen from the sky) and ἱερός (hieros, "holy"). So a ποταμός is water with a source above and a course below, and the Greeks heard something divine in both ends of it.

The etymology is genuinely attested here. Beekes (Etymological Dictionary of Greek, Brill 2010), Chantraine (Dictionnaire étymologique de la langue grecque, 1968–80), and Frisk (Griechisches etymologisches Wörterbuch, 1960–72) all treat the word — but the record carries no agreed deeper reconstruction, and imports no further cognate or root meaning.

The cited surfaces carry the word into scripture too: ποταμὸν (potamon, the accusative "river") stands at Acts 16.13 in the New Testament.

If every river was heard as a little god fallen from the sky, what was a Greek crossing when he forded one?