At simul veniebat in mentem oratio Josue, & Calebi, plena divin fiduci: Terra valde bona est.
My patience was almost gone when the second girl received a lash for her “plena Gratia.”
Vilia miretur vulgus; mihi flavus Apollo Pocula Castalia plena ministret aqua.
1670s, "filled space" (opposite of vacuum), from Latin plenum (spatium) "full (space)," neuter of adjective plenus "complete, full" (see plenary). The meaning "of a full assembly of legislators" is first recorded 1772.