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

To make voiceless

• gloss paints
• glossy
• glossy magazine
• glossy magazines
• glossy starling
• glossy starlings
• -glot
• glottal
• glottal stop
• glottal stops
• glottic
• glottidean
• glottides
• glottis
• glottises
• glotto-
• glottochronology
• glottogonic
• glottology
• glout
• glouted
• glouting
• glouts
• glove
• julienne