* 1844 E. FitzGerald Lett. (1889) I. 125 Think of the rocococity of a gentleman studying Seneca in the middle of February..in a remarkably damp cottage.
* 1916 A. Huxley Let. 29 Dec. (1969) 118 My monocle is very grandiose, but gives me rather a Greco-Roman air of rocococity.
Sadly, I did not run across rocococity in any useful context. I was merely looking up rococo to confirm whether or not it pertained to the right time period.