An Etymological Dictionary of the German Language/Huhn
Huhn, n., ‘fowl,’ from MidHG. and OHG. huon (plur. -ir, MidHG. hüener), n.; comp. OSax. hôn, Du. hoen; unknown to E.; OIc. plur. only, hœns (AS. hêns-?), n., ‘fowls.’ Huhn compared with the related words Hahn and Henne is prop. of common gender, and may in OHG. be used instead of Hahn. The Goth. term may have been *hôn or *hônis. Comp. Hahn.