réttar-bót

f. an amendment of the law, a ‘novel’ in law, esp. a Norse law term used in the Icel. law after the introduction of a code of laws, when from time to time new amendments (novellae) were issued by the king; these were written as an appendix to the law code (and since then printed), and were, for the sake of distinction, called réttarbót, see Jb. 445 sqq, N. G. L. i. 257, 258: en er þetta spurðisk í annat fylki ok þriðja, hver réttarbót Þrændum var gefin, Gísl. 84, Bs. ii. 18; hann hét þeim sinni vináttu ok réttarbót, Ó. H. 35; else the word does not occur in the old Icel. law.