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

To make voiceless

• Walter Mitty
• waltier
• waltiest
• Waltonian
• walty
• waltz
• waltzed
• waltzer
• waltzers
• waltzes
• waltzing
• waltzing mice
• waltzing mouse
• waltzings
• waltz into
• waltz Matilda
• waly
• wambenger
• wambengers
• wamble
• wamble-cropped
• wambled
• wambles
• wamblier
• wambliest