Keep
A Dictionary of Law · Henry Campbell Black · 1891
A Dictionary of Law
A strong tower or hold in the middie of any castle or fortification, wherein the besieged make their last efforts of defense, was formerly, in England, called a “keep;” und the inner pile within the castle of Dover, erected by King Henry II. about the year 1153, was termed the “ King’s Keap;” so ab Windsor, ete. It seems to be something of the same nature with what is called abroad a “citadel.”
Jacob.