The word "驾驭" is formed by combining two characters, each with components related to horse control. "驾" consists of the radical "马" (horse) and the phonetic element "加" (suggesting pronunciation), historically meaning to drive a horse-drawn carriage. "驭" also uses the radical "马" (horse) with the component "又" (here indicating control), specifically meaning to manage or steer horses. Together, they form a compound word meaning to drive, control, or master.