Definition of "rochet"

Each priest adorn'd was in a surplice white, / The bishops don'd their albes and copes of state, // Above their rochets button'd fair before, / And mitres on their heads like crowns they wore.

1600, Edward Fairfax, The Jerusalem Delivered of Tasso, XI, iv

Or elſe they vvould ſtraine us out a certaine figurative Prelat, by vvringing the collective allegory of thoſe ſeven Angels into ſeven ſingle Rochets.

1642 (indicated as 1641), John Milton, “To the Argument of B[ishop] Andrews and the Primat”, in The Reason of Church-governement Urg’d against Prelaty […], London: […] E[dward] G[riffin] for Iohn Rothwell, […], 1st book, page 8

They will tell you that they see no difference between an idler with a hat and national cockade, and an idler in a cowl or in a rochet.

1790 November, Edmund Burke, Reflections on the Revolution in France, and on the Proceedings in Certain Societies in London Relative to that Event. […], London: […] J[ames] Dodsley, […]