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

To make voiceless

• slanes
• slang
• slanged
• slanger
• slangers
• slangier
• slangiest
• slangily
• slanginess
• slanginesses
• sesamoids
• sese
• seseli
• seselis
• sesey
• sesh
• seshes
• Sesotho
• sesqui-
• sesquialter
• sesquialtera
• sesquialteras
• sesquicarbonate
• sesquicentenary
• sesquicentennial