Phleg·​e·​thon ˈfle-gə-ˌthän How to pronounce Phlegethon (audio)
: a river of fire in Hades

Examples of Phlegethon in a Sentence

Recent Examples on the Web Following Phlegethon there was a dinner back at the Excelsior. Luke Leitch, Vogue, 7 Oct. 2020

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'Phlegethon.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


Latin, from Greek Phlegethōn

First Known Use

14th century, in the meaning defined above

Time Traveler
The first known use of Phlegethon was in the 14th century

Dictionary Entries Near Phlegethon

Cite this Entry

“Phlegethon.” Dictionary, Merriam-Webster, Accessed 1 Oct. 2023.

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