A chazakah (Hebrew: חֲזָקָה, romanized: ḥəzāqā, lit. 'presumption') is a legal presumption In halakha (Jewish law); it establishes burden of proof. There exist many such presumptions, for example, regarding the ownership of property, a person's status (e.g. whether they are a kohen or Levite), and presumptions about human behavior.