rəˈbā]d.(ˌ)ō, -bä], ](ˌ)tō\ noun
( -s )
Etymology: modification of Middle French rabat — more at rabat
1. : a wide lace-edged collar of the early 17th century worn turned down to lie across the shoulders or stiffened to stand high at the back and often open in front
2. : a stiff support (as of wire) for a ruff or standing collar of the early 17th century