encroachyoudaoicibaDictYouDict[encroach 词源字典]
encroach: [14] Something that encroaches on something else literally seizes it with its ‘hooks’. The word was borrowed from Old French encrochier ‘catch in a hook’, hence ‘seize’. This was a compound formed from the prefix en- and croc ‘hook’ (source of English crochet, crocket, and croquet), a noun borrowed from Old Norse krókr ‘hook’ (source of English crook). The verb’s original use in English was transitive, in the sense ‘seize wrongfully’; the modern sense ‘intrude, trespass’ did not develop until the 16th century.
=> crochet, crook, croquet[encroach etymology, encroach origin, 英语词源]
encroach (v.)youdaoicibaDictYouDict
late 14c., "acquire, get," from Old French encrochier "seize, fasten on, hang on (to), cling (to); hang up, suspend," literally "to catch with a hook," from en- "in" (see en- (1)) + croc "hook," from Old Norse krokr "hook" (see crook (n.)). Sense extended to "seize wrongfully" (c. 1400), then "trespass" (1530s). Related: Encroached; encroaches; encroaching.