lynch (v.) Look up lynch at Dictionary.com
1835, from earlier Lynch law (1811), likely named after William Lynch (1742-1820) of Pittsylvania, Virginia, who c. 1780 led a vigilance committee to keep order there during the Revolution. Other sources trace the name to Charles Lynch (1736-1796) a Virginia magistrate who fined and imprisoned Tories in his district c. 1782, but the connection to him is less likely. The surname is perhaps from Irish Loingseach "sailor."

Originally any sort of summary justice, especially by flogging; narrowing of focus to "extralegal execution by hanging" is 20c. Lynch mob is attested from 1838. Compare earlier Lydford law, from a place in Dartmoor, England, "where was held a Stannaries Court of summary jurisdiction" [Weekley], hence:
Lydford law: is to hang men first, and indite them afterwards. [Thomas Blount, "Glossographia," 1656]
Also Jedburgh justice (1706). Related: Lynched; lynching.
lynx (n.) Look up lynx at Dictionary.com
mid-14c., from Latin lynx (source of Spanish, Portuguese, Italian lince), from Greek lyngz, perhaps from PIE *leuk- "light" (see light (n.)), in reference to its gleaming eyes or its ability to see in the dark.
If that men hadden eyghen of a beeste that highte lynx, so that the lokynge of folk myghte percen thurw the thynges that withstonden it. [Chaucer's "Boethius," c. 1380]
Compare Lithuanian luzzis, Old High German luhs, German luchs, Old English lox, Dutch los, Swedish lo "lynx."
Lyons Look up Lyons at Dictionary.com
city in France at the confluence of the Rhone and the Saône, from Gallo-Latin Lugudunum, literally "fort of Lug." The adjectival form is Lyonnaise.
lyre (n.) Look up lyre at Dictionary.com
harp-like instrument, c. 1200, from Old French lire "lyre," from Latin lyra, from Greek lyra, a foreign word of uncertain origin.
lyric (n.) Look up lyric at Dictionary.com
"a lyric poem," 1580s, from Middle French lyrique "short poem expressing personal emotion," from Latin lyricus "of or for the lyre," from Greek lyrikos "singing to the lyre," from lyra (see lyre). Meaning "words of a popular song" is first recorded 1876. Related: lyrics.
lyrical (adj.) Look up lyrical at Dictionary.com
1580s, from lyric (n.) + -al (1). Related: Lyrically.
lyricism (n.) Look up lyricism at Dictionary.com
1760, from lyric + -ism.
lyricist (n.) Look up lyricist at Dictionary.com
1832, "one skilled in lyric composition;" from lyric + -ist. Meaning "one who writes lyrics" is from 1908.
Lysander Look up Lysander at Dictionary.com
masc. proper name, from Greek Lysandros, literally "releasing men," from comb. form of lyein "to release" (see lose) + -andros "man" (see anthropo-).
lyse (v.) Look up lyse at Dictionary.com
1927, back-formation from lysis.
lysergic (adj.) Look up lysergic at Dictionary.com
1934, from the -lys- in hydrolysis + the first syllable of ergot + -ic.
lysis (n.) Look up lysis at Dictionary.com
"dissolution of cells, bacteria, etc.," 1902, from Latin lysis, from Greek lysis "a loosening," from lyein "to unfasten, loose, loosen, untie" (see lose).
lyso- Look up lyso- at Dictionary.com
word-forming element indicating "loosening, dissolving, freeing," before vowels lys-, from comb. form of Greek lysis "a loosening" (see lyse).
lysol (n.) Look up lysol at Dictionary.com
brown oily coal-tar solution used as a disinfectant, 1890, coined, perhaps in German, from Greek lysis "dissolution" (see lysis) + -ol, element indicating "oil."
lysosome (n.) Look up lysosome at Dictionary.com
1955, from lyso- + -some (3).
lysozyme Look up lysozyme at Dictionary.com
1922, from lyso- + suffix from enzyme.
lytic (adj.) Look up lytic at Dictionary.com
"pertaining to lysis," 1889, from Greek lytikos "able to loose, loosing," from lytos "loosed," verbal adjective of lyein "to unfasten, loose, loosen, untie" (see lose). Related: Lytically.