Source : Webster's Revised Unabridged Dictionary (1913)

Rabato \Ra*ba"to\, n. [F. rabat, fr. rabattre. See {Rabate}.]
   A kind of ruff for the neck; a turned-down collar; a rebato.
   [Obs.] --Shak.

Source : WordNet®

rabato
     n : a wired or starched collar of intricate lace; worn in 17th
         century [syn: {rebato}]
     [also: {rabatos} (pl)]