【記】源於︰prosper ( v.成功；興隆 )
proper (適當的) + success(成功) → prosper (繁榮)

-ity 名詞字尾

prosperity n.興旺，繁榮
【類】palmy:prosperity＝draconian:severity
繁榮的和繁榮＝嚴峻的和嚴峻

property財產→prosperity興旺 有財產就興旺