parchment
/ˈpɑːtʃmənt/noun
mass noun
1- a stiff, flat, thin material made from the prepared skin of an animal, usually a sheep or goat, and used as a durable writing surface in ancient and medieval times羊皮纸。
1.1
- count noun a manuscript written on this material羊皮纸文稿：
a large collection of ancient parchments.
一大批古代羊皮纸文稿藏品。
1.2
- （亦作parchment paper）[mass noun] a type of stiff translucent paper treated to resemble parchment and used for lampshades, as a writing surface, and in baking（用于灯罩、书写、及烘焙的）仿羊皮纸。
1.3
- count noun informal a diploma or other formal document〈非正式〉毕业文凭; 正式文件。
词源
Middle English: from Old French parchemin, from a blend of late Latin pergamina 'writing material from Pergamum' and Parthica pellis 'Parthian skin' (a kind of scarlet leather).