Other forms: discouraged; discouraging; discourages
If your friend is thinking about quitting her job and moving to the Peruvian Andes to raise llamas, you might discourage her by pointing out that she’s allergic to llamas and also afraid of heights.
When you discourage someone, you try to talk them out of doing something, by pointing out reasons why their planned action would be unwise. The verb discourage has roots in the French word descouragier, which comes from des-, meaning “away,” and corage, or “courage.” So when you discourage someone, you can think of it as taking his courage — or enthusiasm — away.