conflate

Short definition from Wiktionary

Verb

1. 1
   To combine or mix together.
2. 2
   To fail to properly distinguish or keep separate (things); to mistakenly treat (them) as equivalent.
3. 3
   To deliberately draw a false equivalence or association, typically in a tacit or implicit manner as propaganda and/or an intentional distortion or misrepresentation of the subject matter.

Adjective

1. 1
   Combining elements from multiple versions of the same text.

Noun

1. 1
   A conflate text, one which conflates multiple version of a text together.