pet·ti·coat
noun/ˈpetɪkəʊt/
/ˈpetɪkəʊt/
(old-fashioned)- a piece of women’s underwear like a thin dress or skirt, worn under a dress or skirt
衬裙 Word Originlate Middle English: from petty coat, literally ‘small coat’: the word originally referred to a garment worn by men under a coat or doublet.