stannary（n.）
usually in plural, Stannaries, the name of a district of tin mines and smelting works in Cornwall and Devon, mid-15c., ultimately from Late Latin stannum "tin" (see stannic).
As the industry was important and had its own ancient customs, the Stannaries were under jurisdiction of special courts (Court of Stannary) by 1460s, which were notorious for irregular summary proceedings. The courts and the jail for it in Devon were at Lydford, hence:
Lydford law: is to hang men first, and indite them afterwards. [Thomas Blount, "Glossographia," 1656]
该词起源时间：15世纪中期