doilyyoudaoicibaDictYouDict[doily 词源字典]
doily: [17] In the latter part of the 17th century a certain Mr Doily kept a celebrated draper’s shop in the Strand, London, not too far from where the Aldwych now is (‘The famous Doily is still fresh in every one’s Memory, who raised a Fortune by finding out Materials for such Stuffs as might be at once cheap and genteel’, Spectator 1712). He gave his name first to a sort of light fabric used for summer wear (‘Some Doily Petticoats and Manto’s we have’, John Dryden, Kind Keeper 1678) and then, early in the 18th century, to a variety of ornamental table napkin (‘After dinner we had coarse Doily-napkins, fringed at each end, upon the table to drink with’, Jonathan Swift, Journal to Stella 1711).
[doily etymology, doily origin, 英语词源]
cheese (n.1)youdaoicibaDictYouDict
Old English cyse (West Saxon), cese (Anglian) "cheese," from West Germanic *kasjus (cognates: Old Saxon kasi, Old High German chasi, German Käse, Middle Dutch case, Dutch kaas), from Latin caseus "cheese" (source of Italian cacio, Spanish queso, Irish caise, Welsh caws).

Of unknown origin; perhaps from a PIE root *kwat- "to ferment, become sour" (cognates: Prakrit chasi "buttermilk;" Old Church Slavonic kvasu "leaven; fermented drink," kyselu "sour," -kyseti "to turn sour;" Czech kysati "to turn sour, rot;" Sanskrit kvathati "boils, seethes;" Gothic hwaþjan "foam"). Also compare fromage. Old Norse ostr, Danish ost, Swedish ost are related to Latin ius "broth, sauce, juice."

Earliest references would be to compressed curds of milk used as food; pressed or molded cheeses with rinds are 14c. Transferred to other cheese-like substances by 1530s. As a photographer's word to make subjects hold a smile, it is attested from 1930, but in a reminiscence of schoolboy days, which suggests an earlier use. Probably for the forced smile involved in making the -ee- sound. Green cheese is that newly made; the notion that the moon is made of green cheese as a type of a ridiculous assertion is from 1520s. To make cheeses was a schoolgirls' amusement (1835) of wheeling rapidly so one's petticoats blew out in a circle then dropping down so they came to rest inflated and resembling a wheel of cheese; hence, used figuratively for "a deep curtsey."
cotillion (n.)youdaoicibaDictYouDict
type of dance, 1766, from French cotillion (15c.), originally "petticoat," a double diminutive of Old French cote "skirt" (see coat (n.)); its application to a kind of dance arose in France and is considered obscure by some linguists, but there are lively turns in the dance that flash the petticoats.

Meaning "formal ball" is 1898, American English, short for cotillion ball. French uses -on (from Latin -onem) to reinforce Latin nouns felt to need more emphatic power (as in poisson from Latin piscis). It also uses -on to form diminutives, often strengthened by the insertion of -ill-, as in the case of this word.