Definition of "obsess" []

• To preoccupy the mind of excessively. (verb-transitive)
• To have the mind excessively preoccupied with a single emotion or topic: "She's dead. And you're still obsessing” ( Scott Turow). (verb-intransitive)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Ah, hell, I obsess from the moment something is completed."
• "The word obsess showed up in English straight out of Classical Latin back in 1440."
• "So, can you now get another issue to "obsess" about?"