Judaization (Hebrew: לְגַיֵּיר, translit. legayer) or Judaification is a process of cultural assimilation in which a person or a demographic group acquires Jewish cultural and religious beliefs and values.
According to some sources nomadic Khazars, particularly their noblemen, were converted to Judaism between 8th and 10th centuries.
It is the obverse of "de-Judaization", the process observed, for example, in Soviet Russia, where discriminatory practices against Jews gave momentum to their "de-Judaization".
Haredization refers to a late 20th- and early 21st-century phenomenon, in which urban and suburban areas of Israel, such as Beit Shemesh, become demographically and politically dominated by Haredim at the expense of non-Haredim (including religious Zionists and Hilonim). The trend is often the subject of protests in various Israeli cities.