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Tether
Language: jargon: sailing
A short length of line used to raise the tack of a sail.
A short length of line connecting a sailor sharness to the boat. Often clipped (with a carabiner-type connector) to jacklines to allow limited mobility.
Any short line or cable used to limit a range of travel.
v.
At the end of my tether : reaching the end of one s endurance.
In order to improve the lead of sheets to a sail, or to position it optimally (for example, a very high-cut yankeetopsailjib set flying from a topmast), or even simply to get the foot above the pulpit and lifelines a short length of line might be used between the sail s tack and the deckfitting. Often the line is made up with two shackles attached with splicedeyes.