Translation:An orange petticoat
Is this (pais) a word that is used for any modern articles of clothing?
Marks and Spencer call them slips
Ok that makes more sense.
"Slip" or "half-slip" is the US English version of "underskirt" or "petticoat".
They used to be worn under a skirt for modesty a throw back from Victorian days when Women wore layers of skirts.