Sosie
Sosie is a term from French that denotes a look-alike or double. In English-language writing, the word is uncommon and typically appears in historical, literary, or stylistic contexts to refer to a person who closely resembles another, whether as an impersonator or in cases of mistaken identity. The closest English equivalents are look-alike, double, or doppelgänger.
Etymology and history: Sosie derives from the French word sosie, conveying a sense of resemblance or copy.
Usage: In contemporary French, sosie remains the standard term for a look-alike. In English, usage is limited