This is a word of comparison and relation in tenure, the correlative of which is the word “priority.” Thus, a man who held lands or tenements of two lords was said to hold of his more ancient lord by priority, and of his less ancient lord by posteriority . Old Nat. Brev. 04. It has also a general application in law consistent with its etymological meaning, and, as so used, it is likewise opposed to priority. Brown.
Black’s Law Online Dictionary
