Condescend

1. verb

   debase oneself morally, act in an undignified, unworthy, or dishonorable way

   “I won't stoop to reading other people's mail”

   Similar: stoop, lower oneself

2. verb

   do something that one considers to be below one's dignity

   Similar: deign, descend

3. verb

   behave in a patronizing and condescending manner

4. verb

   treat condescendingly

   Similar: patronize, patronise