Let"en (lt"en), obs. p. p. of Lete. Chaucer.
Leth"al (lth"l), n. [Lauric + ether + alcohol.] (Chem.) One of the
higher alcohols of the paraffine series obtained from spermaceti as a
white crystalline solid. It is so called because it occurs in the
ethereal salt of lauric acid.
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Le"thal (l"thal), a. [L. lethalis, letalis, fr. lethum, letum, death:
cf. F. léthal.] Deadly; mortal; fatal. "The lethal blow." W.
Richardson. -- Le"thal*ly, adv.
Le*thal"i*ty (l*thl"*t), n. [Cf. F. léthalité.] The quality of being
lethal; mortality.
{ Le*thar"gic (l*thär"jk), Le*thar"gic*al (-j*kal), } a. [L.
lethargicus, Gr. lhqargiko`s: cf. F. léthargique. See Lethargy.]
Pertaining to, affected with, or resembling, lethargy; morbidly drowsy;
dull; heavy. -- Le*thar"gic*al*ly, adv. -- Le*thar"gic*al*ness, n. --
Le*thar"gic*ness, n.
Leth"ar*gize (lth"r*jz), v. t. [imp. & p. p. Lethargized (- jzd); p.
pr. & vb. n. Lethargizing (- j`zng).] To make lethargic.
All bitters are poison, and act by stilling, and depressing, and
lethargizing the irritability.
Coleridge.
Leth"ar*gy (-j), n.; pl. -gies (-jz). [F. léthargie, L. lethargia, Gr.
lhqargi`a, fr. lh`qargos forgetful, fr. lh`qh forgetfulness. See
Lethe.] 1. Morbid drowsiness; continued or profound sleep, from which a
person can scarcely be awaked.