HYDRONYM

A 'hydronym' (from Greek ''hudor'', "water" and ''onuma'', "name") is a proper name of a body of water. 'Hydronymy' is the study of hydronyms and of how bodies of water receive their names and how they are transmitted through history. It can apply to rivers, lakes, even oceanic elements.
Like most toponyms, as linguistic items, hydronyms are very conservative, with successor peoples often retaining the name given a body of water. For example, Mississippi has passed from Native Americans to contemporary Americans. Often a given body of water will have several entirely different names given to it by different peoples. For example, Vltava and Moldau are the Czech and German names, respectively, for the same river in central Europe.
Among the Indo-European languages, hydronyms from various languages can all share a common etymon. The Danube, Don, Dniester, Dnieper and Donets rivers all contain Proto-Indo-European (''
★ danu-''), (IEW 175), meaning "river".

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See also

Source

See also

★ Old European hydronymy

★ Rigvedic rivers

★ List of river name etymologies

★ Toponym

Source

Robert S.P. Beekes, "River", Encyclopedia of Indo-European Culture, pp. 486-87.