This is a preliminary list of words that may be used to describe modifications to coffins (and other ancient Egyptian artefacts), with preliminary suggested definitions to aid in distinguishing between the ways they are used.
An altered or amended version of a text, musical composition, etc. The action or process of altering, amending, or modifying something, esp. something that has been created for a particular purpose, so that it suitable for a new use
Something which is added or joined to another thing
Taking something as one’s own or to one’s own use: this might be the purpose underlying modification
The action or process of making something greater in number, size, or degree
The action or process of defacing; the fact or state of being defaced; a disfigurement
Added decoration/adornment, usually with the intention of making something more attractive
The action of making something, esp. a book or text, imperfect by excision or destruction of one or more of its parts
The act of assigning something differently, to a person, place, purpose, category, etc.
The conversion or adaptation of something for a different purpose or for use in a different way
The act, process or result of returning something to its (supposed) original condition
The action or process of working something again (in various senses); also the product of such action
A second or further use of something
The act of taking/seizing something by force or without authority