good-bye: [16] The good of good-bye was originally God. The expression is a contraction of God be with you, a form of farewell first recorded in the late 16th century. Its gradual reduction can be traced through a series of metamorphoses (Shakespeare, for instance, had God be wy you and God buy’ ye), and it did not reach modern good-bye until the 18th century. The substitution of good for God seems to have been mainly due to the influence of such phrases as good day and good night. => god
salutation in parting, also goodbye, good bye, good-by, 1590s, from godbwye (1570s), a contraction of God be with ye (late 14c.), influenced by good day, good evening, etc. As a noun from 1570s. Intermediate forms in 16c. include God be wy you, God b'uy, God buoye, God buy, etc.
双语例句
1. Remember, keep a positive attitude and good things will happen.
记住：保持乐观的心态，好事自然会发生。
来自美剧《摩登家庭》
2. Do not wait for good things to happen to you. You need to walk towards happiness.
不要等待好事降临，你要向幸福进发。
来自金山词霸 每日一句
3. 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
4. I have tried to pack a good deal into a few words.
我尽量言简意赅。
来自柯林斯例句
5. I feel it's done me good to get it off my chest.
