Georgette

An abaya is a traditional robe-like dress or coat made of thin flowing fabric such as chiffon or georgette, and is usually made in black.

She looked away from the stage at an enormously stout lady promenading in a black and salmon georgette dress.

Martha began sarcastically to explain why it was that even if she had been twelve she could not have worn this pink frilled georgette to the Van Rensbergs' house, since nice little English girls were not for export.

I turned, and saw that Josella had come into the room. She was wearing a long, pretty frock of palest blue georgette with a little jacket of white fur.

Silk chiffon and silk georgette. Two thin, thin materials that cannot be confused with each other.