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

To make voiceless

• inner cities
• inner city
• inner-city
• inner dead centre
• inner-directed
• inner-direction
• inner ear
• inner ears
• Inner House
• inner light
• innerly
• inner man
• innermost
• innerness
• innernesses
• inner part
• inner planet
• inner planets
• inners
• inner space
• inner tube
• inner tubes
• innervate
• innervated
• innervates