Triatic stay

triatic stay - A stay leading from one mast, such as the main mast to another, such as the mizzen mast.

triatic stay - A stay from foremast head to mainmast head in a schooner, and termed sciatic stay in old works.
trick - The time a man is stationed at the helm. See also "Spell." ...

The aft sail is generally just called the mizzen, not the mizzen sail. Frequently on ketches, there is a stay connecting the tops or near the tops of the two masts. This is called the triatic stay.

See also: Sailing, Boat, Lines, Hull, Throat