different between forestay vs forestaysail

English

Etymology 1

From Middle English forstay, forstey, vorstey, equivalent to fore- +? stay (“a stay, rope”).

Alternative forms

• forstay

Noun

forestay (plural forestays)

1. (nautical) A stay that extends from the top of the foremast to the bow or bowsprit of a sailing ship

Coordinate terms

• backstay

Translations

Verb

forestay (third-person singular simple present forestays, present participle forestaying, simple past and past participle forestayed)

1. (transitive) To stay beforehand; secure or fasten with or as with a forestay.

Etymology 2

From fore- +? stay (“to hold off, postpone, delay”).

Alternative forms

• forstay (Scotland)

Verb

forestay (third-person singular simple present forestays, present participle forestaying, simple past and past participle forestayed)

1. (transitive) To stay, delay, postpone, or hinder beforehand; forestall; prevent.
   • 1954, Osteopathic Magazine - Volumes 41-42 - Page 75:

     It is reasonable to suppose that further research into the complex bio-chemistry of the blood will result in more satisfactory substitutes for plasma than are now available and thereby death may be more easily forestayed.

English

Etymology

forestay +? sail

Noun

forestaysail (plural forestaysails)

1. (nautical) A triangular sail attached to the forestay.