medievalize

verb

1. (transitive)To make medieval.

   “We may notice the 3rd, 6th and 7th examples, designed by Mr. W. T. Sams, especially the first named, a lumpy and mediævalized Town Hall.”

   “I don't mean that you are to Grecianize their dress, any more than medievalize it.”

   “The "Mort d' Arthur," on the contrary, has become the plaything of medievalizing folk in modern England.”

   “In the former we find erotic poems that medievalize classical Latin verse under the guidance of Neoplatonic rhetoric, to produce mannered, pedantic play with poetic language and form that takes advantage of erotic situations for grammatical and rhetorical ends.”