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1849 entries found
Lysander 

masc. proper name, from Greek Lysandros, literally "releasing men," from combining form of lyein "to release, unfasten" (from PIE root *leu- "to loosen, divide, cut apart") + andros, genitive of anēr "man" (from PIE root *ner- (2) "man").

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lyse (v.)
1927, back-formation from lysis. Related: Lysed; lysing.
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lysergic (adj.)
in reference to a crystalline organic compound, 1934, from the -lys- in hydrolysis (thus from Greek lysis "a loosening, a dissolution," from lyein "to loosen, dissolve;" from PIE root *leu- "to loosen, divide, cut apart") + the first syllable of ergot (a fungus from which the chemical was first obtained) + -ic.
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lysis (n.)
"dissolution of cells, bacteria, etc.," 1902, from -lysis or from Latin lysis, from Greek lysis "a loosening," from lyein "to unfasten, loose, loosen, untie" (from PIE root *leu- "to loosen, divide, cut apart"). Earlier in the sense "gradual recession of a disease" (1834).
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lysol (n.)
brown oily coal-tar solution used as a disinfectant, 1890, coined, perhaps in German, from Greek lysis "dissolution, dissolving" (from lyein "to unfasten, loose, loosen, untie," from PIE root *leu- "to loosen, divide, cut apart") + -ol, element indicating "oil."
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lysosome (n.)
1955, from lyso- + -some (3). So called for "their richness in hydrolytic enzymes."
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lysozyme 
type of immune-system enzyme found in tears, saliva, egg-whites, etc., 1922, named by its discoverer, Alexander Fleming (six years before he discovered penicillin), who coined it from lyso- "loosening, dissolving" + suffix from enzyme. So called because it attack bacteria cell walls.
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lyssophobia (n.)
"morbid dread of having caught rabies," a psychological condition which sometimes mimicked the actual disease, 1874, Modern Latin, from -phobia + Greek lyssa (Attic lytta) "rabies, canine madness," also the name given to the "worm" of cartilage under a dog's tongue," an abstract word probably literally "wolf-ness" and related to lykos "wolf" (see wolf (n.)); but some see a connection with "light" words, in reference to the glittering eyes of the mad.
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lytic (adj.)
"pertaining to lysis," 1889, from Greek lytikos "able to loose, loosing," from lytos "loosed," verbal adjective of lyein "to unfasten, loose, loosen, untie" (from PIE root *leu- "to loosen, divide, cut apart"). Related: Lytically.
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