Online Etymology Dictionary

Jedi (n.): characters in the "Star Wars" sagas, 1977, apparently an invented word.
-ella: diminutive word-forming element, from Latin -ella, fem. of -ellus.
creativity (n.): 1859, from creative + -ity. An earlier word was creativeness (1800).
di- (3): word-forming element meaning "through; thoroughly," form of dia- before vowels.
raider (n.): 1863, agent noun from raid (v.). A word from the American Civil War.
extro-: word-forming element meaning "outwards," a variant of extra- by influence of intro-.
thievery (n.): 1560s, from thieve + -ery. An Old English word for it was þeofend.
therefrom (adv.): mid-13c., there from. One word from 17c.; see there + from.
mammo-: word-forming element meaning "breast," from Latin mamma "breast" (see mammal).
loran (n.): 1940, a word invented from initial letters in long-range navigation.
login: in the computer sense, as one word, by 1983, from log in.
mithril (n.): 1954, an invented word by English author J.R.R. Tolkien (1892-1973).
motor-: element used extensively in 20c. word formation to indicate motorcar.
crowd (n.): 1560s, from crowd (v.). The earlier word was press (n.).
-ative: word-forming element meaning "of or related to; tending to," from Latin -ativus.
musico-: word-forming element from comb. form of Latin musicus (see music).
-polis: word-forming element meaning "City," from Greek polis "city" (see polis).
Serbo-: word-forming element meaning "Serbian, Serbian and," from Latinized comb. form of Serb.
taxine (adj.): 1888, from Latin taxus "yew tree," probably from a Scythian word, + -ine (1).
Zuni (n.): native people and language of New Mexico, 1834, from Spanish, from a local native word.
easterner (n.): 1839, American English, from eastern + -er (1). Earlier word was easterling.
eso-: word-forming element meaning" within," from Greek eso "within" (see esoteric).
Indra: Vedic thunder god, from Sanskrit Indrah, a word of uncertain origin.
humero-: word-forming element meaning "of the shoulder and," from Latin humerus "shoulder" (see humerus).
larvi-: word-forming element in zoology, from comb. form of larva (q.v.).
liger (n.): 1938, the word, like the thing, a forced mating of lion and tiger.
literalist (n.): "one who adheres to the exact word," 1640s, from literal + -ist. Related: Literalistic.
-oholic: word-forming element abstracted from alcoholic (q.v.); also see -aholic, which has tended to replace it in word formation.
verbiage (n.): "abundance of words," 1721, from French verbiage "wordiness" (17c.), from Middle French verbier "to chatter," from Old French verbe "word," from Latin verbum "word" (see verb).
cicada (n.): late 14c., from Latin cicada "cicada, tree cricket," not a native Latin word; perhaps a loan-word from a lost Mediterranean language.
freightage (n.): 1690s, "money paid for transporting," a hybrid word, from freight (n.) + -age. From 1803 as "freight, cargo." The older word was fraughtage (late 14c.).
jotun (n.): "one of the race of giants in Scandinavian mythology," 1804, a word revived by scholars from Old Norse jotunn "a giant," from the common Germanic word (see ettin).
kinkajou (n.): Central American mammal, 1796, from French (1670s), from an Algonquian word for the wolverine; the North American word was erroneously transferred by Buffon to the tropical animal.
cryptogram (n.): 1880, from crypto- + gram "word, letter." A modern word coined in English; though the elements are Greek, the ancient Greeks would find it barbarous.
rhetorician (n.): early 15c., Old French rethoricien, from rethorique (see rhetoric). An Old English word for one was wordsawere "word-sower."
cycad (n.): 1845, Modern Latin, from Greek kykas, a word found in Theophrastus, but now thought to be a scribal error for koikas "palm trees," accusative plural of koix, a word from an unknown non-Greek language.
tamp (v.): 1819, "to fill (a hole containing an explosive) with dirt or clay before blasting," a workmen's word, perhaps a back-formation from tampion, that word being mistaken as a present participle (*tamping).
tmesis (n.): 1580s, from Greek tmesis "a cutting," related to temnein "to cut," tome "a cutting" (see tome). The separation of the elements of a compound word by the interposition of another word or words (such as a whole nother).
-ial: adjectival word-forming element, variant of -al (1) with connective -i-. From Latin -ialis, in which the -i- originally was from the stem of the word being attached but later came to be felt as connective.
audio-: word-forming element meaning "sound, hearing," from comb. form of Latin audire "to hear" (see audience); first used in English as a word-formation element 1913.
kami (n.): a Japanese word meaning "superior, lord," a title of the gods of Japan, also given to governors. The word was chosen by Japanese converts and Protestant missionaries to refer to the Christian God. Attested in English from 1610s.
logogriph (n.): a type of word puzzle based on synonyms, etc., and often in the form of a verse, 1590s, from French logogriphe, from Greek logos "word" (see logos) + griphos "riddle," literally "fishing basket."
-lite: word-forming element meaning "stone," from French -lite, variant of -lithe, from Greek lithos "stone" (see litho-). The form perhaps influenced by chemical word-forming element -ite (1).
litho-: before vowels, lith-, word-forming element meaning "stone, rock;" from comb. form of Greek lithos "stone, a precious stone, marble; a piece on a game board," a word of unknown origin.
balalaika (n.): stringed instrument with a triangular body, 1788, from Russian balalaika, said to be related to balabolit' "to chatter, babble," an imitative word.
banter (v.): 1670s, origin uncertain; said by Swift to be a word from London street slang. Related: Bantered; bantering. The noun is from 1680s.
cyst (n.): 1713, from Modern Latin cystis (in English as a Latin word from 1540s), from Greek kystis "bladder, pouch."
abed (adv.): Old English on bedde "in bed," from a- (1) + bed (n.). As one word from 17c.
crinoid (adj.): 1836, Latinized from Greek krinoeides "lily-like," from krinon "lily" (a foreign word of unknown origin) + -oeides "like" (see -oid).
decolletage (n.): 1894 (from 1883 as a French word in English), from French décolletage, from décolleté "low-necked" (see decollete).