'Pro confesso' definitions:

Definition of 'Pro confesso'

From: GCIDE

Pro \Pro\, prep. [L.; akin to prae before, Gr. ?, and E. for. See For, prep., and cf. Prior, a.] A Latin preposition signifying for, before, forth. [1913 Webster]
Pro confesso [L.] (Law), taken as confessed. The action of a court of equity on that portion of the pleading in a particular case which the pleading on the other side does not deny.
Pro rata. [L. See Prorate.] In proportion; proportion.
Pro re nata [L.] (Law), for the existing occasion; as matters are. [1913 Webster]