detune /dē-tūnˈ/

1. To alter the oscillations of (violin strings, an electronic circuit, etc)
2. To reduce the performance and efficiency of (a motor-car engine)

• spalpeens
• spalt
• spalted
• spalting
• spalts
• schoolgoings
• school house
• schoolhouse
• schoolhouses
• schoolie
• schoolies
• schooling
• schoolings
• school inspector
• school inspectors
• school-leaver
• school-leavers
• school-leaving
• schoolma'am
• schoolmaid
• schoolmaids
• schoolman
• schoolmarm
• schoolmarmish
• schoolmarms