Heb. hah, a "ring" inserted in the nostrils of animals to which a cord was fastened for the purpose of restraining them (2 Kings 19:28; Isaiah 37:28,29; Ezekiel 29:4; 38:4). "The Orientals make use of this contrivance for curbing their work-beasts...When a beast becomes unruly they have only to draw the cord on one side, which, by stopping his breath, punishes him so effectually that after a few repetitions he fails not to become quite tractable whenever he begins to feel it" (Michaelis). So God's agents are never beyond his control.
Hakkah, a fish "hook" (Job 41:2, Heb. Text, 40:25; Isaiah 19:8; Habakkuk 1:15).
Vav, a "peg" on which the curtains of the tabernacle were hung (Exodus 26:32).
Tsinnah, a fish-hooks (Amos 4:2).
Mazleg, flesh-hooks (1 Samuel 2:13,14), a kind of fork with three teeth for turning the sacrifices on the fire, etc.
Mazmeroth, pruning-hooks (Isaiah 2:4; Joel 3:10).
'Agmon (Job 41:2, Heb. Text 40:26), incorrectly rendered in the Authorized Version. Properly a rush-rope for binding animals, as in Revised Version margin.
These dictionary topics are from M.G. Easton M.A., D.D., Illustrated Bible Dictionary, Third Edition, published by Thomas Nelson, 1897. Public Domain, copy freely.
Easton, Matthew George. "Entry for 'Hook'". "Easton's Bible Dictionary".