prejudicing

Webster's Dictionary (GCIDE)

1.To cause to have prejudice; to prepossess with opinions formed without due knowledge or examination; to bias the mind of, by hasty and incorrect notions; to give an unreasonable bent to, as to one side or the other of a cause; as, to prejudice a critic or a juryman. [1913 Webster]

Suffer not any beloved study to prejudice your mind so far as to despise all other learning.— I. Watts[1913 Webster]

2.To obstruct or injure by prejudices, or by previous bias of the mind; hence, generally, to hurt; to damage; to injure; to impair; as, to prejudice a good cause. [1913 Webster]

Seek how may prejudice the foe.— Shak[1913 Webster]