Anchor
An anchor is a device, normally made of metal, used to connect a vessel to the bed of a body of water to prevent the craft from drifting due to wind or current. The word derives from Latin "ancora", which itself comes from the Greek ἄγκυρα ("ankura").
Anchor
Chain rode is relatively heavy but resists abrasion from coral, sharp rocks, or shellfish beds which may abrade a pure rope warp. Fibre rope is more susceptible to abrasion on the seabed or obstructions, and is more likely to fail without warning.