The word "condescending" refers to an attitude where someone behaves in a way that shows they believe they are more important or more intelligent than other people. A condescending person often speaks to others in a patronizing manner, making them feel inferior or belittled. Essentially, it denotes a lack of respect for the abilities or worth of others.
The word "condescending" originates from the Latin word "condescendere," which means "to descend together." This reflects the idea of lowering oneself to engage with someone else, but in a manner that implies superiority.