The collection of poems was transcribed by bored student George Bannatyne in the 16th century while he was locked up inside his Edinburgh home due to a plague that had struck the city.
The manuscript contains William Dunbar's epic poem “The Flying of Dunbar and Kennedie,” which sees two poets trading insults. As the pair exchanges blows, Walter Kennedy brands Dunbar a “wan fukkit funling”. --> one of the earliest surviving records of the word 'f#ck' in the world.
https://www.iflscience.com/editors-blog/one-of-the-earliest-known-uses-of-the-fword-found-in-manuscriptwritten-during-theplague/