wage最熟悉的词意是工资，那么wager的后缀是er，根据构词法应该是指人。所以猜是拿工资的人或者是发工资的人。但是这是不对的，正确的词意很意外，也很好奇为什么会和工资关联上？先猜一下词意，然后再查词典，意外可以让我们更容易的记住单词。

Read word and guess the meaning, today's word: wager
the most familiar meaning of wage is the money you work for, then the suffix of wager is er, normally that means person. so i guess the meaning should be the person  who pays income or gets income. but the correct meaning is unexpected, i am curious  that why this meaning is related to wage? Please guess the meaning first, then look it up in a dictionary, unexpectedness can help us to remember words more easily.