[German version]

A. Concept

Lex (‘law’, pl. leges) in Roman law denotes stipulation by a private individual, an office-bearer or a legislative body. The etymology is obscure. A derivation from legere (‘to read out’), referring to the method of stipulation by way of a ceremonial formula (cf. B. below on nuncupatio) remains speculative. Crucial to the lex is its mandatory character. On the other hand, in the original use of the term it lacks the ‘abstract’ (cla…