G. J. Adler, A Practical Grammar of the Latin Language… (1858)
“ The emphatic nam affixed to either of these pronouns gives animation to the inquiry; as quisnam? who, pray? quidnam? what then? quinam, quaenam, quodnam? which, pray? Remark 2. The general rule is that quis should stand substantively for both genders, and qui, quae adjectively; as quis? who? qui vir? which (or what) man? quae femina? what woman? ”
