plăcentĭa, ae, f. [placeo],
suavity , courteousness (post-class.), Ap. Dogm. Plat. 2, p. 15, 33.
PLACEN´TIA(Πλακεντία: Eth. Placentinus: Piacenza), a city of Gallia Cispadana, situated near the S. ...
Dictionary of Greek and Roman Geography