Answer:
There are two possibilities cited for the origin of the name of the town Croydon. One theory is that the name Croydon came originally from the Anglo-Saxon croh, meaning "crocus" and denu 'valley', indicating that, like Saffron Walden in Essex, it was a centre for the collection of saffron - a valuable spice. The other view is that the name is derived from the Old French croie dune, meaning "chalk hill",