cudyoudaoicibaDictYouDict[cud 词源字典]
cud: [OE] The etymological meaning of cud appears to be ‘glutinous substance’. It is related to a wide range of Indo-European words in this general sense area, including Sanskrit játu ‘gum’, German kitt ‘putty’, and Swedish kâda ‘resin’, and the first syllable of Latin bitūmen (source of English bitumen [15]) is generally referred to the same source. Quid ‘piece of tobacco for chewing’ is a variant of cud.
=> bitumen, quid[cud etymology, cud origin, 英语词源]
cud (n.)youdaoicibaDictYouDict
Old English cudu "cud," earlier cwudu, common Germanic (compare Old Norse kvaða "resin," Old High German quiti "glue," German Kitt "putty"); perhaps from PIE root *gwet- "resin, gum."