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)

• herbalism
• herbalisms
• herbalist
• herbalists
• herbal medicine
• herbal medicines
• herbals
• herbal tea
• herbal teas
• herbar
• herbaria
• herbarian
• herbarians
• herbaries
• herbarium
• herbariums
• herbars
• Herbartian
• herbary
• herb-beer
• herb-beers
• herb bennet
• herb Christopher
• herbed
• herbelet