letho-, leth-

(Greek > Latin: lie hidden, secret; forgetfulness, forget, inactive through forgetfulness; also sleepy, drowsy, dull, sluggish)

An incapacity to forget past events.
lethargic (adjective), more lethargic, most lethargic
1. Physically slow and mentally dull as a result of tiredness, disease, or drugs.
2. Descriptive of physical slowness and mental dullness.
3. Characterized by laziness, indolence, or torpidity.
1. Pertaining to, affected with, or resembling, lethargy; morbidly drowsy; dull; heavy.
2. Affected with, or producing, lethargy; drowsy; sluggish.
1. Without energy; in a lethargic manner.
2. Descriptive of being lazy, indolent, and torpid.
lethargize, lethargise; lethargizing, lethargized
1. To make lethargic; to stupefy.
2. To bring into a state of lethargy.
1. Producing lethargy.
2. A drug or agent that produces lethargy.
Sleeping sickness; specifically, the African variety.
lethargy (s) (noun), lethargies (pl)
1. A condition of inactivity showing an unusual lack of vigor: Mary woke up much too early in the morning with symptoms of lethargy, feeling extremely tired with a headache and sore eyes.
2. The state of a person being drowsy and dull, listless, indifferent and lazy; apathetic or sluggish inaction: Jane didn't have any time for breakfast or lunch and fell into complete lethargy and fatigue in the afternoon.
3. Pathologically, an abnormal state of disorder characterized by overpowering drowsiness or sleep: Lethargy and a total lack of energy set in when the disease Mrs. Smith had became worse.
4. A situation of excessive fatigue or retardation, with diminished physical or mental activity: A person's lethargy might be a result of an organic disease or dysfunction of the nervous system or of a mental illness; such as, depression.
5. Etymology: From Late Latin lethargia, from Greek lethargia, "forgetfulness" from lethargos, "forgetful"; originally, "inactive through forgetfulness", from lethe, "forgetfulness" + argos, "idle".
A condition of being lazy or indifferent.
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A situation of being abnormally drowsy or lacking energy.
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River of forgetfulness.

One of the five rivers of Hades. Others were the Acheron, the Cocytus, the Phlegethon, and the Styx.

Those who drank from the River Lethe immediately forgot everything that had happened to them.

The expression "waters of Lethe" or the word lethean has been used to imply forgetfulness and complete oblivion which overcame the souls who drank from this stream in the "Lower World".

1. Total loss of memory.
2. Oblivion, forgetfulness.
Inducing forgetfulness or oblivion with reference to the River Lethe; in effect, like the water of Lethe.
The effects of forgotten experiences on present behavior.
An abnormal craving for forgetfulness.
1. A tendency to be forgetful.
2. A condition in which someone forgets.
The inability to recall a word or the right word.

Related "sleep" units: dorm-; hypno-; narco-; oneiro- (dream); somni-; sopor-.

Etymologically related "forget, forgetfulness" word families: aletho-; oblivio-.

Related "memory, remember" word families: memor-; mne-.