Palladium /pə-lāˈdi-əm/

1. A statue of Pallas, on whose preservation the safety of Troy depended
2. Anything of similar virtue
3. (without cap; pl pallāˈdia) a safeguard

• piano organ
• piano organs
• piano-player
• piano-players
• piano roll
• piano rolls
• pianos
• piano-school
• piano-schools
• piano stool
• piano stools
• piano wire
• piano wires
• piarist
• piarists
• pias
• piassaba
• piassabas
• piassava
• piassavas
• piastre
• piastres
• piazza
• piazzas
• piazzian