newyoudaoicibaDictYouDict[new 词源字典]
new: [OE] New goes back a long way – to Indo- European *newos, in fact. This also produced Greek néos ‘new’ (source of English neophyte and a range of other neo- compounds), Latin novus ‘new’ (ancestor of French nouveau, Italian nuovo, and Spanish nuevo, and source of English novel, novice, etc), Welsh newydd ‘new’, Lithuanian naujas ‘new’, and Russian novyj. Its prehistoric Germanic descendant was *neujaz, which has fanned out into German neu, Dutch nieuw, Swedish and Danish ny, and English new. The use of the plural noun news for ‘information’ dates from the 15th century.
=> neon, novel, novice[new etymology, new origin, 英语词源]
oneyoudaoicibaDictYouDict
one: [OE] One is the English member of an ancient and widespread family of ‘one’-words that goes back ultimately to Indo-European *oinos. This also produced Latin ūnus (ancestor of French un and Italian and Spanish uno and source of English ounce, union, unit, etc), Welsh un, Lithuanian víenas, Czech and Polish jeden, and Russian odin, all meaning ‘one’.

Its Germanic descendant was *ainaz, which has fanned out into German ein, Dutch een, Swedish and Danish en, and English one. In many languages the word is used as the indefinite article, but in English the numeral one has become differentiated from the article a, an. One lies behind alone, atone, and only (all of which preserve its earlier diphthongal pronunciation) as well as once, and its negative form is none.

The use of the word as an indefinite pronoun, denoting ‘people in general’, dates from the late 15th century.
=> alone, atone, eleven, inch, lonely, none, once, only, ounce, union, unit
fan (v.)youdaoicibaDictYouDict
late Old English fannian "to winnow (grain)," from the noun (see fan (n.1)). Meaning "to stir up air" is from early 15c. Baseball sense of "strike out (a batter)" is by 1909. Related: Fanned; fanning. To fan out "spread out like a hand-held fan," is from 1590s.
jumbo (adj.)youdaoicibaDictYouDict
"very large, unusually large for its type," 1882, a reference to Jumbo, name of the London Zoo's huge elephant (acquired from France, said to have been captured as a baby in Abyssinia in 1861), sold February 1882 to U.S. circus showman P.T. Barnum amid great excitement in America and great outcry in England, both fanned by Barnum. The name is perhaps from slang jumbo "clumsy, unwieldy fellow" (1823), which itself is possibly from a word for "elephant" in a West African language (compare Kongo nzamba).
"I tell you conscientiously that no idea of the immensity of the animal can be formed. It is a fact that he is simply beyond comparison. The largest elephants I ever saw are mere dwarfs by the side of Jumbo." [P.T. Barnum, interview, "Philadelphia Press," April 22, 1882]
As a product size, by 1886 (cigars). Jumbo jet attested by 1964.