When you feel a really strong dislike for your roommate's boyfriend because he always leaves your apartment a big mess, this feeling you feel is an example of animus.
When you go to the doctor and he tells you that you are in danger of getting diabetes if you don't lose weight and you then decide to go on a diet, the doctor's warning is an example of animus.
Origin of animus
- Latin anə- in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition