prosperé
Prosperé is a term encountered mainly as a proper noun in French- or Francophone contexts. It is not a standard lexical item in modern French; when seen in ordinary text, it is more likely a misspelling or a deliberate branding choice rather than a dictionary entry. The correct past participle of prospérer is prospéré, and prosperé would typically be regarded as nonstandard or as a coined form.
As a proper noun, Prosperé can serve as a surname or given name in French-speaking communities, and
In branding or media, Prosperé may function as a brand name or title, chosen for its connotations
See also: Prospérité, Prosper, Prosper (surname or given name).