gazetteyoudaoicibaDictYouDict[gazette 词源字典]
gazette: [17] If the Sun or the Mirror were called the 22p, they would be echoing the origins of the word gazette. In Renaissance Venice, a ‘newspaper’ was termed casually gazeta de la novita (gazeta for short), literally a ‘pennyworth of news’ – for a gazeta was the name of a small Venetian copper coin (probably a diminutive form of gazza ‘magpie’).

Italian took the word over as gazzetta, and passed it on to English via French. The verbal use of gazette, ‘announce a military promotion officially’, arises from the practice of printing such announcements in the British government newspaper, the London Gazette (first published in the 17th century). The derived gazeteer [17], ultimately from Italian gazzettiere, originally meant ‘journalist’.

Its current sense ‘index of places’ was inspired by Laurence Echard’s The Gazetteer’s; or a Newsman’s Interpreter: Being a Geographical Index 1693.

[gazette etymology, gazette origin, 英语词源]
potshotyoudaoicibaDictYouDict
potshot: [19] A potshot was originally a shot taken at an animal or bird simply in order to kill it for food – in order to get it into the ‘pot’, in other words – rather than in accordance with the strict code and precise techniques of shooting as a ‘sport’. Indeed to begin with it was distinctly a contemptuous term among the hunting and shooting fraternity. But gradually it broadened out in meaning to any ‘casually aimed shot’.
casual (adj.)youdaoicibaDictYouDict
late 14c., "subject to or produced by chance," from Middle French casuel (15c.), from Late Latin casualis "by chance," from Latin casus "chance, occasion, opportunity; accident, event" (see case (n.1)).

Of persons, in the sense of "not to be depended on, unmethodical," it is attested from 1883; meaning "showing lack of interest" is from 1916. Of clothes, "informal," from 1939. Related: Casually.
encounter (v.)youdaoicibaDictYouDict
c. 1300, "to meet as an adversary," from Old French encontrer "meet, come across; confront, fight, oppose," from encontre (see encounter (n.)). Weakened sense of "meet casually or unexpectedly" first recorded in English early 16c. Related: Encountered; encountering.
fall (v.)youdaoicibaDictYouDict
Old English feallan (class VII strong verb; past tense feoll, past participle feallen) "to drop from a height; fail, decay, die," from Proto-Germanic *fallan (cognates: Old Frisian falla, Old Saxon fallan, Dutch vallen, Old Norse falla, Old High German fallan, German fallen, absent in Gothic).

These are from PIE root *pol- "to fall" (cognates: Armenian p'ul "downfall," Lithuanian puola "to fall," Old Prussian aupallai "finds," literally "falls upon").

Meaning "come suddenly to the ground" is from late Old English. Of darkness, night, from c. 1600; of land sloping from 1570s; of prices from 1570s. Of empires, governments, etc., from c. 1200. Of the face or countenance from late 14c. Meaning "to be reduced" (as temperature) is from 1650s. Meaning "die in battle" is from 1570s. Meaning "to pass casually (into some condition)" is from early 13c.

To fall in "take place or position" is from 1751. To fall in love is attested from 1520s; to fall asleep is late 14c. To fall down is early 13c. (a-dun follon); to fall behind is from 1856. Fall through "fail, come to nothing" is from 1781. To fall for something is from 1903.

To fall out is by mid-13c. in a literal sense; military use is from 1832. Meaning "have a disagreement, begin to quarrel" is attested from 1560s (to fall out with "quarrel with" is from late 15c.).
incident (n.)youdaoicibaDictYouDict
early 15c., "something which occurs casually in connection with something else," from Middle French incident and directly from Latin incidentem (nominative incidens), present participle of incidere "happen, befall," from in- "on" + -cidere, comb. form of cadere "to fall" (see case (n.1)). Sense of "an occurrence viewed as a separate circumstance" is from mid-15c. Meaning "event that might trigger a crisis or political unrest" first attested 1913.
incidentally (adv.)youdaoicibaDictYouDict
1520s, "by the way, casually;" see incidental + -ly (2). Sense of "as a new but related point" attested by 1925.
peruse (v.)youdaoicibaDictYouDict
late 15c., "use up, wear out, go through," from Middle English per- "completely" (see per) + use (v.). Meaning "read carefully" is first recorded 1530s, but this could be a separate formation. Meaning "read casually" is from 19c. Related: Perused; perusing.