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alike [alike 词源字典]: alike: [OE] Alike is an ancient word whose ultimate Germanic source, *galīkam, meant something like ‘associated form’ (*līkam ‘form, body’ produced German leiche ‘corpse’ and Old English lic, from which we get lychgate, the churchyard gate through which a funeral procession passes; and the collective prefix *gameant literally ‘with’ or ‘together’).

In Old English, *galīkam had become gelīc, which developed into Middle English ilik; and from the 14th century onwards the prefix i-, which was becoming progressively rarer in English, was assimilated to the more familiar a-. The verb like is indirectly related to alike, and the adjective, adverb, preposition, and conjunction like was formed directly from it, with the elimination of the prefix.
=> each, like[alike etymology, alike origin, 英语词源]
calm: calm: [14] The underlying meaning of calm seems to be not far removed from ‘siesta’. It comes ultimately from Greek kauma ‘heat’, which was borrowed into late Latin as cauma. This appears to have been applied progressively to the ‘great heat of the midday sun’, to ‘rest taken during this period’, and finally to simply ‘quietness, absence of activity’. Cauma passed into Old Italian as calma, and English seems to have got the word from Italian.
limbo: limbo: English has two distinct and probably unrelated words limbo. By far the older is the theological limbo [14], referring originally to that condition in which the souls of the dead exist that are neither in heaven nor in hell. It comes from Latin limbus ‘border, edge’, which in the Middle Ages was used to refer to a region on the borders of, but not actually inside, hell.

It very often turned up in the ablative case, in the phrase in limbo, which is how English adopted it. The other limbo [20], denoting a West Indian dance that involves passing underneath a progressively lowered bar, probably comes from limber ‘flexible, supple’ [16], which in turn might be from limb or possibly from limber ‘detachable forward part of a gun-carriage’ [15] (although spellings of that with a b do not occur before the 17th century).

No one knows where that limber came from, although it might ultimately be Celtic. Alternatively, if the bar is viewed as a sort of boundary that the dancer must cross, the terpsichorean limbo could be related to the theological limbo.
despot (n.): 1560s, "absolute ruler," from Old French despot (14c.), from Medieval Latin despota, from Greek despotes "master of a household, lord, absolute ruler," from PIE *dems-pota- "house-master;" for first element see domestic (adj.); second element cognate with Latin potis, potens (see potent).

Faintly pejorative in Greek, progressively more so as used in various languages for Roman emperors, Christian rulers of Ottoman provinces, and Louis XVI during the French Revolution. The female equivalent was despoina "lady, queen, mistress," source of the proper name Despina.
frigate (n.): 1580s, from Middle French frégate (1520s), from Italian fregata (Neapolitan fregate), which with many names for types of sea vessels is of unknown origin. It is common to the Mediterranean languages (Spanish, Portuguese, Catalan fragata). Originally a small, swift vessel; the word was applied to progressively larger types over the years.
[A] light nimble vessel built for speed; employed in particular for the gleaning of intelligence and the protection and assault of trade-routes. In battle the frigates took station on the disengaged side of the fleet, where they repeated signals, sped on messages, and succoured the distressed. [Sir Geoffrey Callender, "Sea Passages," 1943]
In the old sailing navy usually they carried guns on a raised quarter-deck and forecastle, hence frigate-built (1650s) of a vessel having the quarter-deck and forecastle raised above the main-deck.
progressive (adj.): c. 1600, "characterized by advancement" (in action, character, etc.), from progress (n.) + -ive, or else from French progressif, from past participle stem of Latin progredi. Of taxation, from 1889; of jazz, from 1947. Meaning "characterized by striving for change and innovation, avant-garde, liberal" is from 1908.

In the socio-political sense "favoring reform; radically liberal," it emerged in various British contexts from the 1880s; in the U.S. it was active as a movement in the 1890s and a generation thereafter, the name being taken again from time to time, most recently by some more liberal Democrats and other social activists, by c. 2000. The noun in the sense "one who favors social and political change in the name of progress" is first attested 1865 (originally in Christianity). Earlier in a like sense were progressionist (1849, adjective; 1884, noun), progressist (1848). Related: Progressively; progressiveness.