Question

what is meant by privacy purse

Answer 1

Privacy Pass is currently supported by Cloudflare to help reduce the number of CAPTCHAs that need to be solved by honest users. The privacy-preserving aspect of Privacy Pass means that users can redeem tokens instead of solving more CAPTCHAs without compromising their anonymity.

Answer 2

Its privy purse
It is a sum from the public revenues allotted to the sovereign for personal expenses

In India, the Privy Purse was a payment made to the ruling (royal or lower) families of erstwhile princely states as part of their agreements to first integrate with India in 1947, and later to merge their states in 1949 whereby they lost all ruling rights

basically in easy language
money collected from common people to give to rulers