Webster's Revised Unabridged Dictionary · 1913

Hopple

Hopple , transitive verb

[From Hop; compare Hobble.]

1.
To impede by a hopple; to tie the feet of (a horse or a cow) loosely together; to hamper; to hobble; as, to hopple an unruly or straying horse.
2.
Figuratively: To entangle; to hamper. — Dr. H. More

Hopple , noun

A fetter for horses, or cattle, when turned out to graze; -- chiefly used in the plural.