Noun
The word is derived from desideratum
See Desideratum.
of Desideratum
Source: Webster's dictionaryFor example, in 1732, the antiquarian Francis Peck published in Desiderata Curiosa a list of documents in his possession that he intended to print someday. Source: Internet
Mann, pg. 380 His pleas fell on deaf ears, and Charlemagne married Desiderata in 770, temporarily cementing a familial alliance with the Lombards. Source: Internet