To plagiarise is to copy something without acknowledging where it came from, implying that it is your own work rather than somebody elses.

"Favourites around the West Riding folk scene for years, Paul & Lynn played at the New York Firefighters Concert at The Sun in Beverley last year, and have been fully booked up since" was copied from my description of them in the PVFF prgramme so I accused you of plagiarism - but only lightheartedly ;-)

R