letheon

L1E1T1H4E1O1N1
/ˈliːθiːən/

noun

diethyl ether, used as an anaesthetic agent.

OriginNew Latin lēthēon ← Ancient Greek λήθη →
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Meanings

nounletheon (uncountable)
  1. archaicuncountablemedicinediethyl ether, used as an anaesthetic agent.

Origin

  1. Ancient Greekλήθη“forgetting, forgetfulness”
  2. New Latinlēthēon
  3. Englishletheon

From New Latin lēthēon, from Ancient Greek λήθη (lḗthē, “forgetting, forgetfulness”).

More words from New Latin, Ancient Greek

Full word history & related roots →

Rhymes & wordplay

Anagrams

ethenol
Cite this entry
APA

letheon. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/letheon

MLA

“letheon.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/letheon. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “letheon,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/letheon.

Source: letheon on Wiktionary, CC BY-SA 4.0.