blot out
US /blɑːt aʊt/
UK /blɑːt aʊt/

1.
masquer, effacer, occulter
to cover or hide something completely
:
•
The clouds blotted out the sun.
Les nuages ont masqué le soleil.
•
He tried to blot out the painful memories.
Il a essayé d'effacer les souvenirs douloureux.