1. condescend upon : 对...详加说明；
不及物动词
1. 屈尊;俯就;降低身份
If someone condescends to do something, they agree to do it, but in a way which shows that they think they are better than other people and should not have to do it.
2. 表现出高人一等;盛气凌人
If you say that someone condescends to other people, you are showing your disapproval of the fact that they behave in a way which shows that they think they are superior to other people.
1. treat condescendingly
2. debase oneself morally, act in an undignified, unworthy, or dishonorable way
e.g. I won't stoop to reading other people's mail
Synonym: stooplower oneself
3. do something that one considers to be below one's dignity
4. behave in a patronizing and condescending manner