surtax /sûrˈtaks/

1. An additional tax
2. Tax payable on incomes above a certain high level (term not in official use in this sense)

1. To tax additionally
2. To charge surtax

• oversown
• oversows
• overspecialisation
• overspecialise
• overspecialised
• overspecialises
• overspecialising
• overspecialization
• overspecialize
• overspecialized
• overspecializes
• overspecializing
• overspend
• overspending
• overspends
• overspent
• overspill
• overspills
• overspin
• overspins
• overspread
• overspreading
• overspreads
• overstaff
• overstaffed