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

• perinea
• perineal
• perinephric
• perinephritis
• perinephritises
• perinephrium
• perinephriums
• perineum
• perineums
• perineural
• perineuria
• perineuritis
• perineuritises
• perineurium
• period
• periodate
• periodates
• perioded
• periodic
• periodic acid
• periodical
• periodical cicada
• periodical cicadas
• periodicalist
• periodicalists