precursor /prē-kûrˈsər/

1. Something that exists or goes in advance of another
2. An indication of the approach of an event
3. A forerunner, herald or harbinger
4. A predecessor
5. A substance from which the one in question is derived or manufactured (chem)

• chopines
• chopins
• chop logic
• choplogic
• choplogics
• chopped
• chopper
• choppers
• choppier
• choppiest
• choppily
• choppiness
• chopping
• chopping-block
• chopping-blocks
• chopping-board
• chopping-knife
• chopping-knives
• choppings
• choppy
• chops
• chops and changes
• chopsockies
• chopsocky
• chopstick