cardigan (n.)

"close-fitting knitted woolen jacket or waistcoat," 1868, from James Thomas Brudenell (1797-1868), 7th Earl of Cardigan, English general distinguished in the Crimean War, who set the style, in one account supposedly wearing such a jacket while leading the Charge of the Light Brigade at Balaclava (1854). The place name is an Englishing of Welsh Ceredigion, literally "Ceredig's land." Ceredig lived in the 5th century.

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Definitions of cardigan from WordNet
cardigan (n.)
knitted jacket that is fastened up the front with buttons or a zipper;
Cardigan (n.)
slightly bowlegged variety of corgi having rounded ears and a long tail;
Synonyms: Cardigan Welsh corgi