What term describes a steady, easy gait in running or riding?

The term that accurately describes a steady, easy gait in running or riding is "lope." This term is particularly used to indicate a relaxed and comfortable running rhythm that allows for a smooth and efficient movement without straining. A lope is characterized by a slower and more controlled pace, making it ideal for endurance and maintaining energy over longer distances.

In contrast, other terms like "strut," "gallop," and "stroll" describe different types of movement. While a strut suggests a more exaggerated or showy walking gait, a gallop refers to a faster and more powerful gait typically associated with horses running at high speed. A stroll implies a leisurely walking pace, which doesn't correspond to running or riding. Thus, "lope" is the most fitting word to describe a steady, easy gait.