Word Origin & History
prepossess
1614, "to get possession of beforehand," from pre- + possess (q.v.). Meaning "to possess (a person) beforehand with a feeling, notion, etc." is from 1639; specifically, "to cause (someone) to have a favorable opinion of something" (1647). Prepossessing is from 1642 in sense of "causing prejudice;" opposite meaning "causing agreeable first impression" first recorded 1805.