To mummify something is to preserve it by wrapping it in cloth or paper and then putting it in a dry place. Mummified bodies are often found in ancient tombs.
Colonizers are people who move to a new place and try to take over the local culture. They often start off by doing things that are popular in their new home, but they eventually start to change the way the people live.
To dehumanize someone is to make them seem like an animal, or to treat them like an animal. You might dehumanize someone by calling them names, or by treating them like they are not human.
A cannibalistic person is someone who eats other people. This can be done for any reason, from hunger to revenge.
An opportunist is someone who is always looking for their chance to take advantage of a situation. They are usually very quick to take advantage of any opportunity that they see.
A concoction is a mixture of different things. It can be anything from a drink to a recipe.
When something is fictionalized, it is made up. This means that the events, characters, and settings in the story are all made up.