devocalize or devocalise /dē-vōˈkə-līz/ or devoice /dē-voisˈ/

To make voiceless

• wallow
• wallowed
• wallower
• wallowers
• wallowing
• wallowings
• wallows
• wall painting
• wall paintings
• wallpaper
• wallpapered
• wallpapering
• wallpapers
• wall pass
• wall passes
• wall pepper
• wall peppers
• wall plate
• wall plates
• wall rocket
• wall rockets
• wall rue
• wall rues
• walls
• wallsend