lituus /litˈū-əs/

1. An augur's curved staff (historical)
2. A J-shaped Roman trumpet (historical)
3. A curve of similar form with the polar equation r² θ = a (mathematics)

• promoted
• promoter
• promoters
• promotes
• promoting
• promotion
• promotional
• promotions
• promotive
• promotor
• promotors
• prompt
• prompt book
• prompt books
• prompt box
• prompt boxes
• prompt copies
• prompt copy
• prompted
• prompter
• prompters
• promptest
• prompting
• promptings
• promptitude