desconectar
/deskoneɡˈtaɾ/ · B2 · verb
to switch off, to shut down, to turn off, to shut off
🔌 des- (undo) + conectar (connect) = undo the connection
The prefix des- reverses an action, and conectar means to connect. So desconectar is literally to un-connect: pull the plug on a device, or switch off from work and relax.