The transitive form of this amazing, rarely used verb is defined in the OED:
To raise or stabilize the value of (a commodity, etc.) by a centrally organized scheme; generally to evaluate, to make valid.
In the work space of entrepreneurial conservation no single word captures more effectively what we are trying to accomplish with regard to natural and cultural heritage. Oddly, the etymology OED provides for the word is stuck in the 20th Century. Its roots extend back at least to the 19th Century (let’s see who knows their political theory), and the new branches of its meaning, for illustrative purposes, can be found on these pages.