Online Etymology Dictionary

carbonation (n.): 1881, from carbonic acid, an old name for carbon dioxide (see carbonate (n.)) + -ation.
Carlos: Spanish form of the Germanic masculine proper name that is represented in English by Charles.
Czech: said to be from the name of an ancestral chief, but perhaps from a source akin to Czech četa "army."
cultivator (n.): 1660s, noun of action (in Latin form) from cultivate. As the name of an agricultural tool, from 1759.
denominate (v.): 1550s, from Latin denominatus, past participle of denominare "to name" (see denomination). Related: Denominated; denominating.
Emily: also Emilia, fem. proper name, from French Émilie, from Latin Aemilia; see Emil.
Earth Day: as an annual ecological awareness event on April 22, dates to 1970; the idea and the name formed in 1969.
moke (n.): "dolt," 1855, originally (16c.) "donkey;" of unknown origin, perhaps originally a personal name. In U.S., "black person," from 1856.
Cheryl: fem. proper name, popular in U.S. for girls born 1944-1975.
Celeste: fem. proper name, from French céleste (11c.) "sky, heaven," from Latin caelestis "heavenly" (see celestial).
Malaysia: from Malay + Latinate ending -sia. Originally an early 19c. British geographers' name for the Indonesian archipelago. Related: Malaysian.
Macau: from Portuguese corruption of southern Chinese ama (name of a patron goddess of sailors) + ngao "bay, port."
OxyContin: brand name of an oxycodone compound marketed in U.S. from 1996. Second element from continuous (i.e. "time-released").
goofy (adj.): 1921, from goof + -y (2). The Disney character of that name began life c. 1929 as "Dippy Dawg."
Gilead: Biblical site (Gen. xxxi:21, etc.), traditionally from the name of a grandson of Manasseh, perhaps from Aramaic gal "heap of stones."
Haiti: from Arawak haiti "land of mountains," and probably originally the name of the whole island. Related: Haitian.
herbicide (n.): "chemical that kills plants," used to destroy unwanted weeds, etc., 1888, originally a trademark name, from herb + -cide.
Hindi (adj.): 1825, from Hind "India" (see Hindu) + -i, suffix expressing relationship. As a the name of a modern language of India, 1880.
hormonal (adj.): 1926, from hormone + -al (1). Earlier as a noun, the name of a spleen hormone. Related: Hormonally.
Kabul: capital of Afghanistan, named for its river, which carries a name of unknown origin.
Kahlua: Mexican coffee-flavored liqueur, produced from 1936, the name said to be from the native Acolhua people, allies of the Aztecs.
Kazakhstan: from the indigenous Kazakh people (whose name is from Turkic kazak "nomad;" see Cossack) + Iranian -stan "country, land" (see -stan).
Keynesian: 1937 (adj.), 1942 (n.), from name of British economist John Maynard Keynes (1883-1946).
Kiev: Ukrainian Kyyiv, of unknown origin; explanation from the name of a founding prince named Kiy probably is folk etymology. Related: Kievan.
Carl: masc. proper name, from Middle High German Karl "man, husband" (see carl).
Caroline: fem. proper name, from French, from Italian Carolina, originally a fem. adjective from Medieval Latin Carolus "Charles" (see Charles).
drosophila (n.): scientific name of a fruit fly, 1829, from Modern Latin (Fallén, 1823), from Greek drosos "dew" + philos "loving" see -phile).
Shadrach: name of one of the three children delivered from the "fiery furnace" in Dan. iii:26.
Erica: fem. proper name, feminine form of Eric. The plant genus is Modern Latin, from Greek ereike "heath."
Erastus: masc. proper name, Latin, literally "beloved," from Greek erastos, verbal adjective of eran "to love" (see Eros).
Estella: fem. proper name, Spanish, literally "star," from Latin stella (see star (n.)).
Ethel: fem. proper name, originally a shortening of Old English Etheldred, Ethelinda, etc., in which the first element means "nobility."
Ethelbert: Anglo-Saxon masc. proper name, Old English Æðelbryht, literally "nobility-bright;" see atheling + bright (adj.).
Etheldred: Anglo-Saxon fem. proper name, Old English Æðelðryð, literally "of noble strength" (see Audrey).
Ethiopia: Latin Aethiopia, from Greek Aithiopia, from Aithiops (see Ethiop). The native name is represented by Abyssinia.
Eugenia: fem. proper name, from Latin, from Greek Eugenia, literally "nobility of birth," fem. of Eugenius (see Eugene).
Evangeline: fem. proper name, from French Évangeline, ultimately from Greek evangelion "good news" (see evangelism).
Saigon: southern Vietnamese city, capital of former South Vietnam, named for its river, which bears a name of uncertain origin.
Sauterne (n.): also Sauternes, name for certain white wines, 1711, from Sauterne, district near Bordeaux where it is made.
piglet (n.): 1883, from pig (n.) + diminutive suffix -let. Earlier name for baby pig was farrow.
playwright (n.): 1680s (Ben Jonson used it 1610s as a mock-name), from play (n.) + wright (n.).
Peirce: surname, attested from late 12c., from Old French Piers, nominative of proper name Pierre (see Peter) .
percale (n.): 1620s, name of a fabric imported from the East; in modern use, 1840, from French percale, perhaps ultimately from Persian pargalah "a rag."
denominative (adj.): early 15c., "in name only," from Late Latin denominativus, from Latin denominatus (see denominate).
Ptolemy: ancient masc. proper name, from Greek Ptolemaios, literally "warlike," from ptolemos, collateral form of polemos "war." Also see Ptolemaic.
Puerto Rico: Spanish, literally "rich harbor;" Caribbean island, name given in 1493 by Christopher Columbus to the large bay on the north side of the island; he called the island itself San Juan. Over time the name of the bay became the name of the island and the name of the island was taken by the town that grew up at the bay. Often spelled Porto Rico in 19c.; current spelling was made official 1932.
quetzal (n.): central American bird with brilliant plumage, 1827, from Spanish quetzal, from Aztec quetzalli the bird name, literally "tail-feather."
cure-all (n.): "panacea," 1870, from cure (v.) + all. As a name of various plants, it is attested from 1793.
Dinah: fem. proper name, in the Old Testament, Jacob's daughter by Leah, from Hebrew Dinah, literally "judgment," from din "to judge."
reaper (n.): Old English ripere, agent noun from reap (v.). As the name of a personification of death, from 1839.