rabato

rabato Stiff collar, wired or starched, worn in the 16th and 17th centuries; sometimes used as a support for the ruff.
1599, w:William Shakespeare|William Shakespeare, w:Much Ado About Nothing|Much Ado About Nothing, s:Much Ado About Nothing (Shakespeare)|Act 3 Scene 4

MARGARET. Troth, I think your other rabato were better.

HERO. No, pray thee, good Meg, I'll wear this.

MARGARET. By my troth's not so good; and I warrant your cousin will say so.