(London). The “place” or court before the main entrance of a cathedral. In the parvis of St. Paul's lawyers used to meet for consultation, as brokers do in exchange. The word is now applied to the room above the church porch. (Paravisus, a Low Latin corruption of paradisus, a church close.)
A sergeant of lawe, war and wvs, That often haddé ben atté parvys.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894