decorated with frogging (ornamental braided button fastenings and loops); fastened or trimmed with military-style decorative clasps.
From be- + frog (decorative military fastenings made of braid) + -ed. Frogs were originally decorative closures on military uniforms. Common in 19th-century fashion and military dress.
Frogging was a status symbol on military uniforms and fancy coats—officers would have elaborate befrogged jackets, and the word itself survives mainly in costume and historical dress contexts now.
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