Trousers, slacks, or pants (North American English) are a type of clothing that is worn from the waist to the ankles and covers both legs individually (rather than with cloth extending across both legs as in robes, skirts, and dresses). The word "pants" is originally an abbreviation for pantaloons, which were black leather trousers worn by men during the 17th century in Europe. In modern usage, the word "pants" has taken on additional meanings related to the act or ability of doing something: he's not very good at pantsing. The word "pants" also means underwear that covers the entire body, including undergarments. Pants may be used as a generic term for any garment that covers the entire body, such as swimwear, jackets, coats, and dresses. This use of the word is common in British English but less common in American English. Finally, the word "pants" can also refer to a person who wears pants. This usage is common among boys and young men.