ampereyoudaoicibaDictYouDict[ampere 词源字典]
ampere: [19] This international term for a unit of electrical current derives from the name of André-Marie Ampère (1775–1836), the French physicist and mathematician. It was officially adopted by the Congrès Électrique in Paris in 1881. Ampère himself is best remembered for first making the distinction between electrical current and voltage, and for explaining magnetism in terms of electrical currents. The term ammeter ‘current-measuring device’ [19] was based on ampere.
[ampere etymology, ampere origin, 英语词源]
chimeyoudaoicibaDictYouDict
chime: [13] Etymologically, chime is the same word as cymbal – indeed it originally meant ‘cymbal’ in English – but the route by which it reached English is not altogether clear. Latin cymbalum was borrowed into Old French as chimbe, which is perhaps the most likely source of the English word, whose earliest forms include chimbe. However, Old English also acquired the Latin word, as cimbal, and it has been speculated that this may have survived into the Middle English period as *chimbel, whose last syllable was misinterpreted as bell.

This would have opened the way to a misanalysis of the word as chime bell, a term which does actually occur from the 13th to the 15th centuries. This theory has the advantage of explaining the transference of the word’s meaning from ‘cymbals’ to ‘bells’, which occurred between the 14th and 15th centuries.
=> cymbal
explain (v.)youdaoicibaDictYouDict
early 15c., from Latin explanare "to explain, make clear, make plain" (see explanation). Originally explane, spelling altered by influence of plain. Also see plane (v.2). In 17c., occasionally used more literally, of the unfolding of material things: Evelyn has buds that "explain into leaves" ["Sylva, or, A discourse of forest-trees, and the propagation of timber in His Majesties dominions," 1664]. Related: Explained; explaining; explains. To explain (something) away is from 1709.
explicative (adj.)youdaoicibaDictYouDict
1640s, "having the function of explaining," from Latin explicativus, from explicat-, past participle stem of explicare "unfold; explain" (see explicit). As a noun, from 1775.
manifesto (n.)youdaoicibaDictYouDict
"public declaration," 1640s, from Italian manifesto "public declaration explaining past actions and announcing the motive for forthcoming ones," originally "proof," from Latin manifestus (see manifest (adj.)).