Plural of 'duc,' an archaic or variant spelling of 'duke,' a nobleman of high rank.
From Old French 'duc,' derived from Latin 'dux' (leader or commander). 'Ducs' represents a plural form, though this spelling is now archaic in English, which standardized to 'dukes' and 'dux' in different contexts.
Ducs shows how English pluralization has evolved—modern English abandoned French-style plurals for Germanic ones, so we now say 'dukes' instead of 'ducs,' revealing the Norman French influence slowly retreating from English over centuries.
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