co-, 强调。-ag, 驱动，做，思考，词源同agent. 此处反映了词根ag词义的多元性。

1. She was able to cogitate quite clearly while exchanging honeyed impertinences with Mrs. Branderton.

她一边和布兰德顿夫人亲密地闲扯,一面还能十分清楚地深思问题.

2. I need a few days to cogitate the problem.

我需要几天的时间来思考这问题.

3. The evolutions of the society changing and practice style affect the transformation of cogitate style.

社会变迁和实践方式的变化影响着思维方式的转型.

4. Although I like being around people, I do need my quiet time to cogitate.

我喜欢跟人交往但也喜欢独处思考.