Definition of "mirrour"

This skeleton was deposited a little to the south of the center of the tumulus; and about 20 feet to the north of it was another, with which were-- 5th. A large mirrour about 3 feet in breadth and 1-1/2 inches in thickness.

1880, H. C. Yarrow, Introduction to the study of mortuary customs amongst the North American Indians

RIGHT Honourable, It was my good happe not longe since, in a Friends House, to light vpon a briefe History of the Life, Arraignement, and Death of that Mirrour of all true Honour, and Vertue Syr Thomas More, who by his Wisdome, Learning, & Santity, hath eternized his Name, Coutrey, & Profession, throughout the Christian World, with immortall Glory, and Renowne.

1626, William Roper, The Mirrour of Vertue

To the Mirrour of her Sex Mrs. Ellinor Pargiter [...]

1664, Robert Codrington, The second Part of Youth's Behaviour, or Decency in Conversation amongst Women