circulación
/θiɾkulaˈθjon/ · B2 · noun · f
traffic
🚗🔄 circulación = circul(ar) 'go in a circle' + -ación, like circle + action
Spanish circulación comes from Latin circulare, 'to move in a circle', from circulus 'ring'. Blood goes round the body, and cars flow round the streets: both are movement in a loop, so it covers circulation and traffic.