athleteyoudaoicibaDictYouDict[athlete 词源字典]
athlete: [18] The etymological idea underlying athlete is ‘competing for a prize’. Greek āthlon meant ‘award, prize’, whence the verb athlein ‘compete for a prize’. Derived from this was the noun athlētés ‘competitor’. The context in which the word was most commonly used in Greek was that of the public games, where competitors took part in races, boxing matches, etc. Hence the gradual narrowing down of the meaning of athlete to ‘one who takes part in sports involving physical exercise’, and even further to ‘participant in track and field events’.
[athlete etymology, athlete origin, 英语词源]
gymnasiumyoudaoicibaDictYouDict
gymnasium: [16] Greek gumnós meant ‘naked’. It was customary in ancient times for athletes to train naked, and so the verb gumnázein came to mean ‘train, practise’ – particularly by doing exercises (whence English gymnast [16]). From the verb was derived the noun gumnásion, which Latin borrowed as gymnasium ‘school’. This academic sense has never caught on to any extent in English (although it is the word’s only application in German); we have preferred to go back to the original athletic connotations.
athlete (n.)youdaoicibaDictYouDict
early 15c., from Latin athleta "a wrestler, athlete, combatant in public games," from Greek athletes "prizefighter, contestant in the games," agent noun from athlein "to contest for a prize," related to athlos "a contest" and athlon "a prize," which is of unknown origin. Before 1750, usually in Latin form. In this sense, Old English had plegmann "play-man." Athlete's foot first recorded 1928, for an ailment that has been around much longer.
athletic (adj.)youdaoicibaDictYouDict
1630s (athletical is from 1590s), "pertaining to an athlete," from Latin athleticus, from Greek athletikos, from athletes (see athlete). Meaning "strong of body; vigorous; lusty; robust" [Johnson, who spells it athletick] is from 1650s.
gymnast (n.)youdaoicibaDictYouDict
1590s, "one who is expert in gymnastics," a back-formation from gymnastic. Greek gymnastes was "a trainer of professional athletes."
jog (v.)youdaoicibaDictYouDict
1540s, "to shake up and down," perhaps altered from Middle English shoggen "to shake, jolt, move with a jerk" (late 14c.), of uncertain origin. Meanings "shake," "stir up by hint or push," and "walk or ride with a jolting pace" are from 16c. The main modern sense in reference to running as training mostly dates from 1948; at first a regimen for athletes, it became a popular fad c. 1967. Perhaps this sense is extended from its use in horsemanship.
Jogging. The act of exercising, or working a horse to keep him in condition, or to prepare him for a race. There is no development in jogging, and it is wholly a preliminary exercise to bring the muscular organization to the point of sustained, determined action. [Samuel L. Boardman, "Handbook of the Turf," New York, 1910]
Related: Jogged; jogging. As a noun from 1610s.
recruit (v.)youdaoicibaDictYouDict
1630s, "to strengthen, reinforce," from French recruter (17c.), from recrute "a levy, a recruit" (see recruit (n.)). Sense of "to enlist new soldiers" is attested from 1650s; of student athletes, from 1913. Related: Recruited; recruiting.
redshirt (v.)youdaoicibaDictYouDict
"to withdraw (a player) from the varsity team to add a year to his or her eligibility," 1955, in reference to the red shirts worn by athletes on the scrimmage squad; from red (adj.1) + shirt (n.).
world (n.)youdaoicibaDictYouDict
Old English woruld, worold "human existence, the affairs of life," also "a long period of time," also "the human race, mankind, humanity," a word peculiar to Germanic languages (cognates: Old Saxon werold, Old Frisian warld, Dutch wereld, Old Norse verold, Old High German weralt, German Welt), with a literal sense of "age of man," from Proto-Germanic *wer "man" (Old English wer, still in werewolf; see virile) + *ald "age" (see old).

Originally "life on earth, this world (as opposed to the afterlife)," sense extended to "the known world," then to "the physical world in the broadest sense, the universe" (c. 1200). In Old English gospels, the commonest word for "the physical world," was Middangeard (Old Norse Midgard), literally "the middle enclosure" (see yard (n.1)), which is rooted in Germanic cosmology. Greek kosmos in its ecclesiastical sense of "world of people" sometimes was rendered in Gothic as manaseþs, literally "seed of man." The usual Old Norse word was heimr, literally "abode" (see home). Words for "world" in some other Indo-European languages derive from the root for "bottom, foundation" (such as Irish domun, Old Church Slavonic duno, related to English deep); the Lithuanian word is pasaulis, from pa- "under" + saule "sun."

Original sense in world without end, translating Latin saecula saeculorum, and in worldly. Latin saeculum can mean both "age" and "world," as can Greek aion. Meaning "a great quantity or number" is from 1580s. Out of this world "surpassing, marvelous" is from 1928; earlier it meant "dead." World Cup is by 1951; U.S. baseball World Series is by 1893 (originally often World's Series). World power in the geopolitical sense first recorded 1900. World-class is attested from 1950, originally of Olympic athletes.