Where does “Piacenza” come from?

Piacenza derives from Latin Placentia, from placentia meaning "pleasingness" or "satisfaction," ultimately from the Proto-Indo-European root plā-k- meaning "to be pleasing."

Ancestry of “Piacenza”, step by step

Step	Language	Word	Meaning
1	Italian	Piacenza	pleasantness, amiability
2	Latin	placentia	nominative neuter plural of placēns; accusative...
3	Latin	placens	pleasing, welcoming, satisfying
4	Latin	placeō	to be pleasing or agreeable to; to please, to be nice; to be welcome or acceptable; to satisfy, suit in a mental rather than a sensual way

Every word from Latin placeō →Every word from Latin placens →Every word from Latin placentia →