Clop
Part of speech: noun
Definition: The sound of a horse's shod hoof striking the ground.
Part of speech: verb
Definition: To make this sound.
Clump
Part of speech: noun
Definition: A cluster or lumpA thick group or bunch, especially of bushes or hair.A dull thud.
Part of speech: verb
Definition: To form clusters or lumpsTo gather into thick groupsTo walk with a heavy footfalls.