apagar
/apaˈɡaɾ/ · A2 · verb
to shut off, to turn off, to switch off, to shut down, to power off
🕯️ a- + pagar (to pay, from Latin pacare, to pacify): pacify the flame
Apagar comes from Latin pacare, to pacify or calm, the same root as pagar (to pay) and paz (peace). To put out a fire or switch off a device is to make it peaceful. Hook: you pay off the fire and it goes quiet.