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)

• nationalized
• nationalizes
• nationalizing
• National Lottery
• nationally
• national park
• national parks
• nationals
• quagginesses
• quaggy
• quagmire
• quagmired
• quagmires
• quagmirier
• quagmiriest
• quagmiring
• quagmiry
• quags
• quahaug
• quahaugs
• quahog
• quahogs
• quaich
• quaiches
• quaichs