zipper (n.)youdaoicibaDictYouDict[zipper 词源字典]
1925, probably an agent noun from zip (v.1). The trademark taken out on the name that year applied to a boot with zippers, not to the "lightning fastener" itself, which was so called by 1927.[zipper etymology, zipper origin, 英语词源]
Zippo (n.)youdaoicibaDictYouDict
proprietary name of a brand of cigarette lighter, patented 1934 by Zippo Manufacturing Co., Bradford, Pa.
zippy (adj.)youdaoicibaDictYouDict
1904, from zip (n.) "energy, force" (1900, from zip (v.1)) + -y (2).
zircon (n.)youdaoicibaDictYouDict
1794, circon, also jargon, new name given in chemistry to jacinth, from French zircone and German Zirkon (compare French jargon, Italian giargone), from Arabic zarqun "cinnabar, bright red," from Persian zargun "gold-colored," from Avestan zari- "gold-colored," from zar "gold."
zirconium (n.)youdaoicibaDictYouDict
metallic chemical element, 1808, coined by German chemist and mineralogist Martin Heinrich Klaproth (1743-1817) in 1789; so called because it was found in zircon.
zit (n.)youdaoicibaDictYouDict
"acne pimple," 1966, originally U.S. teenager slang, of unknown origin.
zither (n.)youdaoicibaDictYouDict
stringed musical instrument, 1850, from German Zither, from Old High German zitara, from Latin cithara, from Greek kithara (see guitar).
ziti (n.)youdaoicibaDictYouDict
type of tubular pasta, plural of zita (1845), from Italian, said to be a dialect word for "bridegroom."
zloty (n.)youdaoicibaDictYouDict
monetary unit of Poland, 1842, from Polish złoty, literally "of gold," from złoto "gold," related to Russian zoloto, Czech zlato "gold" (see gold).
zoa (n.)youdaoicibaDictYouDict
plural of zoon (q.v.).
zoanthropy (n.)youdaoicibaDictYouDict
form of insanity in which a man imagines himself to be another type of beast, 1845, from French zoanthrope or directly from Modern Latin zoanthropia, from Greek zoion "animal" (see zoo) + anthropos "man" (see anthropo-).
zodiac (n.)youdaoicibaDictYouDict
late 14c., from Old French zodiaque, from Latin zodiacus "zodiac," from Greek zodiakos (kyklos) "zodiac (circle)," literally "circle of little animals," from zodiaion, diminutive of zoion "animal" (see zoo).

Libra is not an animal, but it was not a zodiac constellation to the Greeks, who reckoned 11 but counted Scorpio and its claws (including what is now Libra) as a "double constellation." Libra was figured back in by the Romans. In Old English the zodiac was twelf tacna "the twelve signs," and in Middle English also Our Ladye's Waye and the Girdle of the Sky.
zodiacal (adj.)youdaoicibaDictYouDict
1570s, from zodiac + -al (1).
fem. proper name, Greek, literally "life" (see zoo-).
zoetrope (n.)youdaoicibaDictYouDict
"optical instrument which exhibits pictures as if alive and in action," 1867, literally "wheel of life," from Greek zoe "life" (see zoo-) + trope "turn" (see trope).
Zohar (n.)youdaoicibaDictYouDict
Jewish mystical commentary on the Pentateuch, 1680s, Hebrew, literally "light, splendor."
zoic (adj.)youdaoicibaDictYouDict
"pertaining to animal life," 1863, from Greek zoikos, from zoion "animal" (see zoo-).
zollverein (n.)youdaoicibaDictYouDict
1843, from German Zollverein, literally "customs union," from Zoll "toll" (see toll (n.)) + Verein "union," from vereinen "to unite," from ver- + ein "one" (see one).
zombie (n.)youdaoicibaDictYouDict
1871, of West African origin (compare Kikongo zumbi "fetish;" Kimbundu nzambi "god"), originally the name of a snake god, later with meaning "reanimated corpse" in voodoo cult. But perhaps also from Louisiana creole word meaning "phantom, ghost," from Spanish sombra "shade, ghost." Sense "slow-witted person" is recorded from 1936.
zonal (adj.)youdaoicibaDictYouDict
1839, from Late Latin zonalis, from Latin zona (see zone (n.)).