specifically : a historical process by which the semantic and connotative status of a word tends to decline
Same with racist. Facist. Nazi. Transphobe. I even have to fight back rolling my eyes at the word "rape."
All of it, all of it, completely lost impact. Can't help but think it's some sort of larger strategy of some kind, and those who spew these words like candy are little unaware chess players leading to their own demise.