To 'succumb to' something can mean to fail to resist temptation, to give in to pressure or to yield to persuasion. The verb 'succumb' can also be used to talk about someone dying from the effects of disease or illness. This work might be used more in a formal situation and is similar in meaning to 'yield' and 'to give into'.

1. Robert was determined not to succumb to the pressure being exerted on him by his boss to work longer hours. He felt that his family must come first.
2. I am supposed to be on a diet, but when the slice of cake was put in front of me I succumbed to temptation and ate it!
3. Mary passed away yesterday. She fought bravely for a long time before eventually succumbing to her illness.

1. The politician succumbed to the interests of the lobbyists and promised to invest in commerce.
2. Although it is tempting we must not succumb to greed just because we have the opportunity to make a lot of money.