catchyoudaoicibaDictYouDict[catch 词源字典]
catch: [13] Originally catch meant ‘chase, hunt’ (and in fact it is etymologically related to the English word chase). However, it remarkably quickly moved on to be applied to the next logical step in the procedure, ‘capture’, and by the early 16th century ‘chase’ was becoming obsolete (although it remains the only sense of related words in other languages, such as French chasser and Italian cacciare).

Looked at from another point of view, however, catch might be said to be harking back to its ultimate roots in Latin capere ‘take’, source of English capture. Its past participle, captus, provided the basis for a new verb captāre ‘try to seize, chase’. In Vulgar Latin this became altered to *captiāre, source of Old French chacier (whence English chase) and the corresponding Anglo-Norman cachier (whence English catch).

=> capture, chase[catch etymology, catch origin, 英语词源]
catch (v.)youdaoicibaDictYouDict
c. 1200, "to take, capture," from Anglo-French or Old North French cachier "catch, capture" (animals) (Old French chacier "hunt, pursue, drive (animals)," Modern French chasser "to hunt;" making it a doublet of chase (v.)), from Vulgar Latin *captiare "try to seize, chase" (also source of Spanish cazar, Italian cacciare), from Latin captare "to take, hold," frequentative of Latin capere "to take, hold" (see capable).

Senses in early Middle English also included "chase, hunt," which later went with chase (v.). Of infections from 1540s; of fire from 1734; of sleep, etc., from early 14c. Related: Catched (obsolete); catching; caught.

Meaning "act as a catcher in baseball" recorded from 1865. To catch on "apprehend" is 1884, American English colloquial. To catch (someone's) eye is first attested 1813, in Jane Austen. Catch as catch can first attested late 14c.
catch (n.)youdaoicibaDictYouDict
late 14c., "device to hold a latch of a door," also "a trap;" also "a fishing vessel," from catch (v.). Meaning "action of catching" attested from 1570s. Meaning "that which is caught or worth catching" (later especially of spouses) is from 1590s. Sense of "hidden cost, qualification, etc." is slang first recorded 1855 in P.T. Barnum.