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

To make voiceless

• electromagnetic wave
• electromagnetism
• electromagnets
• electromechanical
• electromechanically
• electromechanics
• electromer
• electromeric
• electromerism
• electromerisms
• electromers
• electrometallurgical
• electrometallurgist
• electrometallurgists
• electrometallurgy
• electrometer
• electrometers
• electrometric
• electrometrical
• electrometrically
• electrometries
• electrometry
• electromotance
• electromotive
• electromotive force