WEAKEN

[verb]You could see the dog weakening daily as the disease spread through its body. [I]Many factors weaken a body's ability to combat infection. [T]Another defeat in parliament would seriously weaken the president's ability to govern. [T]She's weakening - ask her some more questions and see if she confesses. [I]Various indicators show that the country's economy continues to weaken. [I]They were weakened by hunger and climbing became difficult. [T]We know that prolonged exposure to vibration can weaken aircraft components. [T]