The name of an English court of record held once in the year, and’ not oftener, within a particular hundred, lordship, or manor, before the steward of the leet; being the king’s court granted by char-ter to the lords of those hundreds or manors. Its ofiice was to view the frankpledges,—that is, the freemen within the liberty; to present by jury crimes happening within the juris-diction; and to punish trivial misdemeanors. It has now, however, for the most part, fall-en into total desuetude; though in some manors a court-leet is still periodically held for the transaction of the administrative business of the manor. Mozley & whitley
Source: Black’s Law Dictionary 2nd Ed (1910)
