along: [OE] The a- in along is related to the prefix anti-, and the original notion contained in the word is of ‘extending a long way in the opposite direction’. This was the force of Old English andlang, a compound formed from and- ‘against, facing’ (whose original source was Greek anti- ‘against’) and lang ‘long’. The meaning gradually changed via simply ‘extending a long way’, through ‘continuous’ and ‘the whole length of something’ to ‘lengthwise’.
At the same time the and- prefix was gradually losing its identity: by the 10th century the forms anlong and onlong were becoming established, and the 14th century saw the beginnings of modern English along. But there is another along entirely, nowadays dialectal. Used in the phrase along of ‘with’ (as in ‘Come along o’me!’), it derives from Old English gelong ‘pertaining, dependent’.
This was a compound formed from the prefix ge-, suggesting suitability, and long, of which the notions of ‘pertaining’ and ‘appropriateness’ are preserved in modern English belong. => long
along (prep.)
Old English andlang "entire, continuous; extended; all day long; alongside of," from and- "opposite, against" (from Proto-Germanic *andi-, *anda-, from PIE *anti "against," locative singular of *ant- "front, forehead;" see ante) + lang "long" (see long (adj.)). Sense extended to "through the whole length of."
along 双语例句
1. A fellow doesn't last long on what he has done. He's got to keep on delivering as he goes along.--Carl Hubbell, Baseball Player
靠过去完成的无法让人保有成功，必须在路上持续交出成绩。
来自金山词霸 每日一句
2. Good luck is when an opportunity comes along and you're prepared for it.
好运就是当机会来临时，你早已做好了准备。
来自金山词霸 每日一句
3. I was on my own and these fellows came along towards me.
我正一个人走着，一些家伙朝我走过来。
来自柯林斯例句
4. Come along, lad. Time for you to get home.
来吧，小伙子。你该回家了。
来自柯林斯例句
5. When the right woman comes along, this bad dream will be over.