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

To make voiceless

• traybake
• traybakes
• traybit
• tray cloth
• tray cloths
• trayful
• trayfuls
• traymobile
• traymobiles
• trayne
• trays
• tray-trip
• tray-trips
• treacher
• treacherer
• treacheries
• treacherous
• treacherously
• treacherousness
• treacherousnesses
• treachers
• treachery
• treachetour
• treachetours
• treachour