來自拉丁語 scandere,攀爬，攀登，來自 PIE*skand,爬，跳，詞源同 ascend,descend.字母 d 脫 落，比較 lawn,land.引申詞義標(biāo)出詩歌的韻律，即標(biāo)出詩歌的抑揚(yáng)頓挫，并進(jìn)一步引申詞義 仔細(xì)看，檢查，察看，瀏覽，后用于指掃描，且成為主要詞義。
英文詞源
scan
scan: [14] Latin scandere meant ‘climb’ (it has given English ascend and descend). In the postclassical period it was used metaphorically for ‘a(chǎn)nalyse the rising and falling rhythm of poetry’, and it was in this sense that it passed into English as scan. It was broadened out semantically to ‘examine’ in the 16th century, and to ‘look at widely’ in the 18th century. The Latin past participle scansus formed the basis of the noun scansiō, from which English gets scansion [17]. => ascend, descend, scandal
scan (v.)
late 14c., "mark off verse in metric feet," from Late Latin scandere "to scan verse," originally, in classical Latin, "to climb, rise, mount" (the connecting notion is of the rising and falling rhythm of poetry), from PIE *skand- "to spring, leap, climb" (cognates: Sanskrit skandati "hastens, leaps, jumps;" Greek skandalon "stumbling block;" Middle Irish sescaind "he sprang, jumped," sceinm "a bound, jump").
Missing -d in English is probably from confusion with suffix -ed (see lawn (n.1)). Sense of "look at closely, examine minutely (as one does when counting metrical feet in poetry)" first recorded 1540s. The (opposite) sense of "look over quickly, skim" is first attested 1926. Related: Scanned; scanning.
scan (n.)
1706, "close investigation," from scan (v.). Meaning "act of scanning" is from 1937; sense of "image obtained by scanning" is from 1953.
雙語例句
1. I just had a quick scan through your book again.
我只是又快速瀏覽了一遍你的書。
來自柯林斯例句
2. He was rushed to hospital for a brain scan.
他被火速送往醫(yī)院做腦部掃描。
來自柯林斯例句
3. Their approach is to scan every checked-in bag with a bomb detector.