As an adjective mediaeval
is .
As a noun buttercross is
a type of market cross associated with english market towns and dating from mediaeval times; fresh market produce was laid out and displayed on the circular stepped bases of the cross.
mediaeval
English
Usage notes
* An older spelling, still sometimes, but less commonly, used in scholarly publications.
buttercross
English
Noun
(
es)
(
wikipedia buttercross)
A type of market cross associated with English market towns and dating from mediaeval times; fresh market produce was laid out and displayed on the circular stepped bases of the cross.