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n, pl -tos
(Clothing & Fashion) a wired or starched collar, often of intricate lace, that stood up at the back and sides: worn in the 17th century
[C16: from French rabat collar, with the ending -o added as if the word were from Italian]
or re•ba•to(rəˈbɑ toʊ, -ˈbeɪ-)
n., pl. -tos.
a wide, stiff collar of the 17th century, often worn open at the front and standing up at the back.
[1585–95; < Middle French rabateau]