Czechization (Czech: čechizace) is a cultural change in which something ethnically non-Czech is made to become Czech. This concept is especially relevant in relation to Germans and Poles; to a smaller extent, it has also occurred with Slovaks and Ruthenians (Rusyns).
Czechization in Germany 
"In June 1905, the German language paper Bohemia of Prague reported Czechization in Saxony, Germany after a great influx of Czech workers had Czechified the town of Ostritz. According to Saxon officials the reports were greatly exaggerated. They conceded that while Czech speakers in Saxon communities were fewer than popularly supposed, they were nevertheless worth watching."
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