ἕλος

From Proto-Hellenic *hélos, from Proto-Indo-European *sélos ~ *séles- (“marsh”). Cognate with Sanskrit सरस् (sáras) and perhaps Old Armenian եղտիւր (ełtiwr).^[1][2]

ἕλος • (hélos) n (genitive ἕλεος or ἕλους); third declension

1. marsh-meadow
   • 800 BCE – 600 BCE, Homer, Iliad 20.221
   • 800 BCE – 600 BCE, Homer, Iliad 4.483
   1. (generally) marshy ground, marsh, bog
      • 800 BCE – 600 BCE, Homer, Odyssey 14.474
      • 460 BCE – 420 BCE, Herodotus, Histories 1.191
      • 460 BCE – 395 BCE, Thucydides, History of the Peloponnesian War 1.110
      • Inscr.Cypr. 135.9
      • 430 BCE – 354 BCE, Xenophon, Hellenica 1.2.7
2. backwater
   • 300 BCE – 250 BCE, Apollonius of Rhodes, Argonautica 2.1283

• Translingual: Elodea
• English: helophyte
• Greek: έλος (élos)
• Coptic: ϩⲉⲗⲟⲥ (helos)

• “ἕλος”, in Liddell & Scott (1940) A Greek–English Lexicon, Oxford: Clarendon Press
• “ἕλος”, in Liddell & Scott (1889) An Intermediate Greek–English Lexicon, New York: Harper & Brothers
• “ἕλος”, in Autenrieth, Georg (1891) A Homeric Dictionary for Schools and Colleges, New York: Harper and Brothers
• ἕλος in Bailly, Anatole (1935) Le Grand Bailly: Dictionnaire grec-français, Paris: Hachette
• ἕλος in Cunliffe, Richard J. (1924) A Lexicon of the Homeric Dialect: Expanded Edition, Norman: University of Oklahoma Press, published 1963
• ἕλος in the Diccionario Griego–Español en línea (2006–2024)
• Woodhouse, S. C. (1910) English–Greek Dictionary: A Vocabulary of the Attic Language‎, London: Routledge & Kegan Paul Limited.
  • bog idem, page 87.
  • fen idem, page 315.
  • helos idem, page 395.
  • marsh idem, page 515.
  • quagmire idem, page 662.
  • slough idem, page 785.
  • swamp idem, page 846.