noun /ˌmɪd.l̩ ˈeɪ.dʒɪz/
The period of time in Europe between the decline of the Roman Empire and the revival of letters (the Renaissance) or, according to , the period beginning with the sixth and ending with the fifteenth century.
She could see the town below her, nestled on top of a low hill, surrounded by a crenellated wall from the Middle Ages.
Wikipedia foundation.