prepossess

To prepossess means to affect someone's feelings or judgment beforehand, so that an impression is formed before full thought or experience. Often, it means making someone inclined in favor of something early on, but it can also mean giving them a bias against it. In either case, the key idea is that the mind is moved in advance.

In older and more literary use, the word often suggested winning someone over at once by charm, manner, or appearance. A person could be prepossessed in another's favor by kindness, grace, or a strong first impression. In later and broader use, it also came to describe being biased beforehand, whether fairly or unfairly.

You might say, "Her calm, friendly manner prepossessed everyone in her favor before the meeting even began." You might also say, "He was prepossessed against the plan by earlier failures," meaning his judgment had already been colored before he looked at it fairly.

This is why the word can sit between charm and bias. Sometimes it points to a pleasant first effect that wins people over. Sometimes it points to a prejudice that gets there too soon. The tone is usually formal, and you are more likely to see it in literature, essays, or historical writing than in casual talk.

So when something prepossesses you, it does more than catch your attention. It gives your mind an early push, whether toward liking, trusting, doubting, or resisting, before a full judgment has had time to develop.