Source : Webster's Revised Unabridged Dictionary (1913)

Ing'enue \In`g['e]`nue"\ ([a^]N`zh[asl]`n[.u]"), n.; pl.
   {-nues}. [F., fem. of ing['e]nu ingenious.]
   An ingenuous or na["i]ve girl or young woman, or an actress
   representing such a person.