1. a written record of the customs, laws, and traditions of a particular place or institution
Usage: historical; legal

Examples

• The medieval monastery kept a detailed custumal of its daily practices.
• Scholars studied the ancient custumal to understand local governance.
• The abbey’s custumal outlined proper conduct for monks.
• Legal historians examined the town’s custumal from the 13th century.
• The custumal served as a guide for traditional ceremonies.
• Each guild maintained its own custumal of trade practices.