'De jure' (in
Classical Latin '''de iure''') is an expression that means "based on
law", as contrasted with ''
de facto'', which means "in fact". ''De jure'' should not be confused with the
French ''du jour'', which translates to "of the day", as in ''
soupe du jour or ''
belle de jour, the film''.
The terms ''de jure'' and ''de facto'' are used instead of "in principle" and "in practice", respectively, when one is describing
political situations. ''De jure'' is also translated as "by law". A practice may exist de facto, where for example the people obey a contract as though there were a law enforcing it yet there is no such law. A process known as "
desuetude" may allow de facto practices to replace obsolete laws. On the other hand, practices may exist de jure and not be obeyed or observed by the people.
The phrase is often used in the context of (American) desegregation legislation. Codified segregation is ''de jure'' segregation. The more recent trend of minorities staying in the same areas due to socioeconomic factors is not legislated and is thus ''de facto'' segregation.
See also
★
List of Latin phrases