Rode

The line, chain, or cable that connects an anchor to a vessel.

Rode refers to the length of chain, rope, or a combination of both that attaches a vessel to its anchor. The rode plays a crucial role in anchoring, as it absorbs the forces exerted by wind, waves, and currents, ensuring the anchor holds the vessel securely in place. The length of the rode is critical to the effectiveness of the anchoring system; it is typically recommended that the rode be at least five to seven times the depth of the water to provide the necessary scope. 

Rode can be made of different materials, with chain and rope being the most common. Chain rodes are heavier and provide more weight to help the anchor set and hold, while rope rodes are lighter and easier to handle but may require additional chain near the anchor to improve holding power. Many vessels use a combination of both, with a length of chain attached to the anchor and the rest of the rode made of rope. 
The choice of rode material and length depends on factors such as the size of the vessel, the type of anchor, and the seabed conditions. For example, a heavier chain rode is often preferred in rocky or coral seabeds, while a rope rode may be more suitable for sandy or muddy bottoms. Proper maintenance of the rode is essential to ensure its reliability, as wear and tear can compromise its strength and effectiveness.