Is that the same as a Barstard file?
one explanation for the term is that in the early 14th century, the Duke of Northumberland would abuse tenants of his farms, who were late paying, by torturing their wives.
During this time, he invented a number of tools to help him enforce his punishment for late payment, with one of those tools being commonly known as the "Barstard "illigitimate" file.
The Duke’s reputation spread far and wide, it even reached London and the king’s ear. Henry V had just returned from his jaunt in France and fresh from his celebrated battle of Agincourt and wanted to re-exert his influence over the dukes and earls in court.
He called for the Duke of Northumberland, ridiculed him in front of his peers and used the now commonly known "Barstard" file to remove the tip of the Duke’s nose.
The auto correct in the system changes the word to illigitimate!!!!!!!