corredor
runner
correr
to run
+
-dor
noun suffix indicating the agent of an action
Corredor means runner and is formed from correr0 (to run0) + -dor1 (one who does the action1), literally meaning 'one who runs'.
noun
- runnerA person who runs, especially as a sport or hobbyEl corredor ganó la maratón. // The runner won the marathon.
- hallwayA long, narrow passage in a buildingEl corredor del hotel era muy largo. // The hotel corridor was very long.