whitewash
v//ˈwaɪt-//kalka, vitkalka, vitmena
(often, politics) To hide (someone's) mistakes, or to create an appearance of honesty, propriety, etc., for (someone); also, to intentionally hide or overlook (mistakes, unfavourable facts, wrongdoing, etc.).
(chiefly, literary, and, poetic, often, passive voice) To cover or coat (something) with a white substance, as if with whitewash (noun sense 1); also, to light up (something) with white light.
To paint (a building, a wall, etc.) a bright white with whitewash (noun sense 1).