case·ment
noun/ˈkeɪsmənt/
/ˈkeɪsmənt/
(also casement window)
- a window that opens on hinges like a door
平开窗；竖铰链窗；门式窗 Oxford Collocations DictionaryCasement is used before these nouns:- window
Word Originlate Middle English (as an architectural term denoting a hollow moulding): from Anglo-Latin cassimentum, from cassa, from Latin capsa, related to capere ‘to hold’.