placcate

noun Armor.

1. a piece of plate armor of the 15th to the 18th century protecting the lower part of the torso in front: used especially as a reinforcement over a breastplate.

verb

1. (tr) to pacify or appease

v.1670s, a back-formation from placation or else from Latin placatus “soothed, quiet, gentle, calm, peaceful,” past participle of placare “to calm, appease, quiet, soothe, assuage,” related to placere “to please” (see please). Related: Placated; placating; placatingly.