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)

• Cathar
• Cathari
• catharise
• catharised
• catharises
• catharising
• Catharism
• Catharist
• catharize
• catharized
• catharizes
• catharizing
• Cathars
• catharses
• catharsis
• cathartic
• cathartical
• cathartically
• cathartics
• Cathayan
• cathead
• catheads
• cathectic
• cathedra
• cathedral