égyptianiser

A rare, specialized verb meaning to give something an ancient-Egyptian style or character — seen mainly in art-history and architecture writing (un décor égyptianisé), not in everyday speech.

• L'architecte a égyptianisé la façade du théâtre avec des colonnes à motifs de lotus. — The architect gave the theater's façade an Egyptian look with lotus-motif columns.
• L'Art déco a parfois égyptianisé ses ornements après la découverte de la tombe de Toutankhamon. — Art Deco sometimes gave its ornamentation an Egyptian flavor after Tutankhamun's tomb was discovered.
• Ce cabaret parisien avait égyptianisé tout son décor intérieur. — This Parisian cabaret had given its entire interior décor an Egyptian theme.

So rare that there's no genuine everyday mistake to flag — most native speakers would recognize the word but never use it themselves.