From Old High German huon, from Proto-Germanic *hōną. The expected Luxembourgish singular form is Hunn and hence accidentally the same as the word for “cock, rooster” (< Old High German hano). Hong is the regular dative singular (through velarization in an originally open syllable), which was generalized by analogy with the plural Hénger and the related word Hénkel (“chick”). Cognate with German Huhn, Dutch hoen, Low German Hohn.
Hong n (plural Hénger)