vindáss

Windlass derives from Old Norse vindáss, a compound of vinda (to wind, to coil) and áss (a pole, a beam, a shaft). The Old Norse vinda is related to Old English windan (to wind, to twist), from which English also gets 'wind' (the act of winding, distinct from wind the weather phenomenon), 'winder,' 'winch,' and 'wand' (a thin rod, originally a winding or flexible stick). The áss element — a pole or shaft — appears in other Norse compounds and is related to modern Norwegian and Danish åse (a ridge beam, a rafter). The compound vindáss thus named a horizontal rotating shaft or axle used for winding rope: a machine defined by its central component and its action. English adopted the Norse term through the intensive Viking contact of the 9th and 10th centuries, when Old Norse vocabulary saturated the English spoken in areas of Scandinavian settlement, particularly in the northeast and around coastal trading ports.

The windlass is mechanically distinct from the capstan in one fundamental respect: the capstan rotates on a vertical axis, while the windlass rotates on a horizontal one. This difference in orientation determines how the rope feeds and where the mechanical force is applied. The windlass is particularly effective for hauling horizontal or slightly angled loads — a cable or chain running from the sea floor to the ship's bow at a relatively shallow angle — making it the preferred mechanism for handling anchor chains on smaller vessels where the anchor cable leads forward and down rather than straight down as on a large ship with a deep-draft vertical capstan. Both devices multiply human muscle through mechanical advantage, but they do so in different orientations for different applications.

In the pre-mechanized sailing era, the windlass was the machine that made anchoring in deep water possible for smaller vessels. A ship's anchor — even on a modest vessel — might weigh several hundred pounds, and the chain or cable by which it held might add hundreds more. No small crew could haul this weight hand-over-hand from the bow. The windlass allowed them to wind the cable around the barrel, ratcheting the anchor up through the water one click of the pawl at a time. This made the difference between being able to anchor safely in a harbor and being condemned to sail continuously without rest. The windlass was not exciting equipment; it was the equipment that made overnight stops possible.

The word windlass has remained in nautical use without interruption from its Old Norse origin to the present day. Modern anchor windlasses on sailing yachts are electric; those on large commercial vessels are hydraulic. The mechanism — a rotating horizontal drum with a wildcat (a chain-wheel whose profile engages the chain links) — is recognizable across six centuries of development. The windlass has also moved beyond its maritime context: in mining and construction, a windlass is any horizontal-axis winding device for lifting loads from a well, a mine shaft, or an excavation. The Norse compound for 'winding pole' became the English general term for any drum-based winding machine, preserving its origin in the specific function of turning a shaft to move a rope.