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

To make voiceless

• eco-village
• ecowarrior
• ecowarriors
• ECOWAS
• ecphoneses
• ecphonesis
• ecphractic
• ecphractics
• ecphrasis
• ecritoires
• ecru
• ecrus
• ECS
• ECSC
• ecstases
• ecstasied
• ecstasies
• ecstasis
• ecstasise
• ecstasised
• ecstasises
• ecstasising
• ecstasize
• ecstasized
• ecstasizes