filthyoudaoicibaDictYouDict[filth 词源字典]
filth: see foul
[filth etymology, filth origin, 英语词源]
filth (n.)youdaoicibaDictYouDict
Old English fylð "uncleanness, impurity, foulness," from Proto-Germanic *fulitho (cognates: Old Saxon fulitha "foulness, filth," Dutch vuilte, Old High German fulida), noun derivative of *fulo- "foul" (see foul (adj.)). A classic case of i-mutation.