debaptize

verb2

1. •
   To undo the baptism of.

   • New street names cannot cause confusion with existing streets, nor is it any longer permitted to debaptize parts of streets in order to give them new names […] — 1999
2. •
   To rename or to remove a name from.

   • Fargue had persuaded Jarry to ‘debaptize’ him from the more explicit original title, Caméleo, ‘Leo’ being too obviously related to ‘Léon’. — 2010