''Ius singulare'' is

Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...

for "singular law". It was special law for certain groups of people, things, or legal relations (because of which it is an exception from the general principles of the legal system). An example of this is the law about wills written by people in the military during a campaign, which are exempt of the solemnities generally required for citizens when writing wills in normal circumstances. It contrasts with the ''

ius commune ''Jus commune'' or ''ius commune'' is Latin for "common law" in certain jurisdictions. It is often used by civil law jurists to refer to those aspects of the civil law system's invariant legal principles, sometimes called "the law of the land" ...

'', the general, ordinary law. As Roman law evolved into modern legal systems, the concept of ''ius singulare'' was abandoned and ''ius commune'' was applied to all cases.

See also