Brontes - 1840s a bit late...but
1780-1800 It as common to refer to people when criticising them as the M-------s of G------by. I think there are also cartoons with the middle letters missed out. The idea was to escape legal action
anyway after about1795 itdidnt work. IF hecould be identified then he could issue a write and it was to no avail to say Oh, the M------ss of G------by isnt the Marquess of Granby at all, it is someone else completely
And I always concluded that that had spread to the authroesses as well.