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

To make voiceless

• man-slayers
• mansonries
• mansonry
• man-stealer
• man-stealers
• mansuete
• mansuetude
• mansuetudes
• mansworn
• manta
• manta ray
• mantas
• manteau
• manteaus
• manteaux
• manteel
• manteels
• mantel
• mantel clock
• mantel clocks
• mantelet
• mantelets
• mantelpiece
• mantelpieces
• mantels