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

• square peg in a round hole
• square-pierced
• squarer
• square-rigged
• square-rigger
• square-riggers
• square root
• square roots
• squarers
• squares
• square-sail
• square-sails
• square sausage
• square shooter
• square shooters
• square shooting
• square-shouldered
• squarest
• square-toed
• square-toes
• square up
• square up to
• squarewise
• squarial
• squarials