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

To make voiceless

• profoundnesses
• profounds
• profs
• profulgent
• profundities
• profundity
• profuse
• profusely
• profuseness
• profusenesses
• profuser
• profusers
• profusion
• profusions
• prog
• progenies
• progenitive
• progenitor
• progenitorial
• progenitors
• progenitorship
• progenitorships
• progenitress
• progenitresses
• progenitrix