The Collaborative International Dictionary of English v.0.48:
Donn'ee \Don`n['e]e"\, n. [F., fr. donner to give.] Lit., given; hence, in a literary work, as a drama or tale, that which is assumed as to characters, situation, etc., as a basis for the plot or story. --W. E. Henley. That favorite romance donn['e]e of the heir kept out of his own. --Saintsbury. [Webster 1913 Suppl.]