The word G. huil “bitch” appeared in the Gnomish Lexicon of the 1910s as a female variant of G. hû “dog” (GL/49).

Neo-Sindarin: I would adapt this word as huil “bitch, *female dog” for purposes of Neo-Sindarin as a derivative of later root ᴹ√KHUG “bark, bay” (Ety/KHUGAN), perhaps derived from primitive *khūgil; compare to S. huan “hound”.