Germanisation (also spelled Germanization) refers to the spread of the German language, people and culture or policies which may have introduced these changes. It was a central plank of German liberal thinking in the nineteenth and twentieth centuries, at a period when liberalism and nationalism went hand-in-hand. In linguistics, Germanisation also occurs when a word from the German language is adapted into a foreign language.
Read more about Germanisation: Forms of Germanisation, Germanisation Under The Third Reich, After World War II, Linguistic Germanisation, Surname and Genetic Evidence of Historic Germanisation of Slavs