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

To make voiceless

• out-pensioning
• out-pensions
• outperform
• outperformance
• outperformed
• outperforming
• outperforms
• outplace
• outplaced
• outplacement
• outplacements
• outplacer
• outplacers
• outplaces
• outplacing
• outplay
• outplayed
• outplaying
• outplays
• outpoint
• outpointed
• outpointing
• outpoints
• outport
• out-porter