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

To make voiceless

• banner headlines
• bannerol
• bannerols
• banners
• banning
• bannister
• bannisters
• bannock
• bannocks
• banns
• banoffee pie
• banoffee pies
• banquet
• banqueted
• banqueteer
• banqueteers
• banqueter
• banqueters
• banqueting
• banqueting-hall
• banqueting-halls
• banqueting-house
• banqueting-houses
• banquetings
• banquets