You searched for: “conflation
conflation (s) (noun), conflations (pl)
1. A blowing together, as of many instruments in a concert: "There have been conflations of many fires in the dry brush and forest areas of Australia."
2. The process or result of fusing items into one entity; such as, fusion, amalgamation.
3. The combination of two variant texts into a new one.
4. Combining or blending of two or more versions of a text; confusion or mixing up.