英语词源字典 - 在线词源网站

boilerplate (n.)[boilerplate 词源字典]: newspaper (and now information technology) slang for "unit of writing that can be used over and over without change," 1893, from a literal meaning (1840) "metal rolled in large, flat plates for use in making steam boilers." The connecting notion is probably of sturdiness or reusability. From 1890s to 1950s, publicity items were cast or stamped in metal ready for the printing press and distributed to newspapers as filler. The largest supplier was Western Newspaper Union.[boilerplate etymology, boilerplate origin, 英语词源]
suppliant (n.): early 15c., from Middle French suppliant, noun use of present participle of supplier "to plead humbly, entreat, beg, pray," (Old French souploier, 12c.), from Latin supplicare "beg, beseech" (see supplication). Originally in English especially at law; sense of "humble petitioner" is from mid-16c. As an adjective, "supplicating, entreating" from 1580s. Related: Suppliance; suppliantly.
duopoly: "A situation in which two suppliers dominate the market for a commodity or service", 1920s: from duo-, on the pattern of monopoly.