gasketyoudaoicibaDictYouDict[gasket 词源字典]
gasket: [17] Although it has never been established for certain, it seems likely that gasket may have originated as a word meaning ‘little girl’ – namely French garcette. This is a diminutive of grace ‘girl’, the feminine form of gars ‘boy’ (whence garçon). It is used figuratively for a ‘small rope’, and was originally borrowed into English in the 17th century as gassit, used as a nautical term for a ‘small rope for attaching a furled sail to a mast’.

Modern English gasket, first recorded in the early 17th century, seems to be an alteration of this. The main present-day sense ‘joint seal’ (originally made from tow or plaited hemp) developed in the early 19th century.
[gasket etymology, gasket origin, 英语词源]
gasket (n.)youdaoicibaDictYouDict
1620s, caskette, originally nautical, "small rope or plaited coil" used to secure a furled sail, of uncertain origin, perhaps from French garcette "a gasket," literally "little girl, maidservant," diminutive of Old French garce "young woman, young girl; whore, harlot, concubine" (13c.), fem. of garçon (see garcon). Century Dictionary notes Spanish garcette "a gasket," also "hair which falls in locks." Machinery sense of "packing (originally of braided hemp) to seal metal joints and pistons" first recorded 1829.