kith (n.)youdaoicibaDictYouDict[kith 词源字典]
Old English cyðð "kinship, relationship; kinsfolk, fellow-countrymen, neighbors; native country, home; knowledge, acquaintance, familiarity," from cuð "known," past participle of cunnan "to know" (see can (v.)). Cognate with Old High German chundida. The alliterative phrase kith and kin (late 14c.) originally meant "country and kinsmen" and is almost the word's only survival.[kith etymology, kith origin, 英语词源]