A French word this time, but one I had first learned in Russian.
ja·botnoun \zha-ˈbō, ˈja-ˌbō\
1: a fall of lace or cloth attached to the front of a neckband and worn especially by men in the 18th century
2: a pleated frill of cloth or lace attached down the center front of a woman's blouse or dress
Etymology: French, originally "crop of a bird".
First Known Use: 1823