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search [search 词源字典]: search: [14] Etymologically, search denotes ‘going round in a circle’ – for its ultimate source is Latin circus ‘circle’ (source of English circle and circus). From this was derived the verb circāre ‘go round’, which by the time it had reached Old French as cerchier had acquired connotations of ‘examining’ or ‘exploring’. English took it over via Anglo-Norman sercher. (It is no relation, incidentally, to English seek.)
=> circle, circus[search etymology, search origin, 英语词源]
re-search (v.): "to search again," 1760, from re- + search (v.). Related: Re-searched; re-searching.
research (n.): 1570s, "act of searching closely," from Middle French recerche (1530s, Modern French recherche), back-formation from Old French recercher (see research (v.)). Meaning "scientific inquiry" is first attested 1630s. Phrase research and development is recorded from 1923.
research (v.): 1590s, from Middle French recercher, from Old French recercher "seek out, search closely," from re-, intensive prefix (see re-), + cercher "to seek for" (see search (v.)). Related: Researched; researching.
search (v.): c. 1300, from Old French cerchier "to search" (12c., Modern French chercher), from Latin circare "go about, wander, traverse," in Late Latin "to wander hither and thither," from circus "circle" (see circus). Phrase search me as a verbal shrug of ignorance first recorded 1901. Search engine attested from 1988. Search and destroy as a modifier is 1966, American English, from the Vietnam War. Search and rescue is from 1944.
search (n.): c. 1400, "act of searching;" early 15c., "right to investigate illegal activity; examination of records, wills, etc.; a search through an area or a place," from Anglo-French serche, Old French cerche, from cerchier (see search (v.)). Search warrant attested from 1739.
searchable (adj.): 1550s, from search (v.) + -able. Compare unsearchable.
searchlight (n.): also search-light, 1882, from search (v.) + light (n.).
unsearchable (adj.): late 14c., from un- (1) "not" + searchable (adj.).
squirearchy: "Landowners collectively, especially when considered as a class having political or social influence", Late 18th century: from squire, on the pattern of words such as hierarchy.