silphium /silˈfi-əm/

1. A plant (perh the umbelliferous Ferula tingitana) imported from Cyrenaica by the Greeks for use as a food and in medicine (historical)
2. (cap) a genus of American composites, compass plants

• costumers
• costumes
• costumier
• costumiers
• costuming
• costus
• costus arabicus
• costuses
• costus-root
• cost what may
• cosy
• cosy along
• cosying
• cosy up
• così fan tutte
• cot
• Cot
• cotangent
• cotangents
• cot case
• cot cases
• cot death
• cot deaths
• cote
• coteau